At Home Science Experiments your Kids will love - July 2019

Friday, we had a chance to hang out with the great team on WGN and do some hands-on science experiments. It was a great morning, where we got to explore polymers, make slime, talk about chemical reactions, and how strong everyday materials (cups and cardboard) can be .

Each and every day, we are looking to enable the next generation of creative thinkers and science is a tremendous vehicle for learning how things work, especially for children 2-14 yrs old.  Every class we teach starts with a question kids ask everyday, which we use to explore and focus on guiding them to find answers, instead of just telling kids something abstract in a science book.  Bringing science to life with context makes it accessible, fun, and interesting.  

We want to share some fun science experiments you can do at home. They are interactive, simple, fun, and hopefully we spark hours of fun.

Fluffy Slime (exploring viscosity and bonds)

We get it, slime is all the rage. What is very cool about slime is all the different combinations of materials that result in different viscous substances. Try different combinations of glue, shaving cream, baking soda, saline solution, food coloring and see what happens.

We will start you with an all-time favorite and let you and your kids take it from there. Create your own fully slime with the below:

  • Ingredients: 2/3 Cup Glue, 1/4 Cup Water, 1/2 teaspoon Baking Soda, 2-3 cups Shaving Cream, 1.5 tablespoons saline solution (with boric acid)

  • Order of Mixing: (1) 2/3 Cup Glue, (2) Add Water and Baking Soda Solution, (3) Add Shaving Cream and mix thoroughly, (4) Add Food Coloring (5) Add Saline Solution and mix well.

  • Mixing: you will need to mix for 5-10 minutes (knead) after adding the Saline Solution. The slime will be sticky at first and will slowly become less and less sticky.

  • We recommend an adult mix the materials or be present when your child is mixing


Mentos and Coke

This one is pretty spectacular and we recommend Diet Coke (no sticky sugar) and a nice place outside. A 2 liter of Diet Coke will do the trick. You can purchase a mentos dropper for the top of the bottle (or honestly dropping 3 mentos in quickly works just as well) and then move back fast :). You will create a 10ft+ fountain of greatness.

Make your own roller coaster

This is a very fun challenge at home. A couple 6 ft pieces of foam insulation, easily purchased at Home Depot, some duck tape and a marble is all you need. This can be hours of fun creating and recreating tracks. We would recommend at least three 6 ft pieces of foam tubing.

Here are a couple of keys things to remember

  • Cut the foam tubing as straight as possible

  • Try to keep duck tape out of the track

  • Do not make the slope from the wall to the floor too steep

  • Don’t be afraid to leverage duck tape or boxes to keep the track stable

Here are some ideas for rollercoaster challenges (1) can you get a loop to work (2) how about jumps (3) angle the track sideways (4) how about adding hills (5) what is the greatest distance you can get the marble to travel.

How about a Chemical Reaction

This one everyone can do at home. We all have baking soda and vinegar in the cabinets. Place the vinegar in one cup and the baking soda in the other. When you combine them, you are forming a chemical reaction. If you want to try to make it even better add some dish soap to the vinegar, mix, and then add it to a new cup of baking soda.

Ingredients Needed

  • Two small cups
    Baking Soda
    Dishsoap (optional)

We recognize that having fun is important, and while music, sports, other activities are indeed fantastic, children as young as 2 yrs old can experiment with science everyday from a popsicle that melts and why viscosity is cool. That's science. That's KSL. 

At Home Science Experiments Everyone Can Do

At Home Science on a Cold Day

It sure is cold in Chicago with -20 degree temperatures outside. Since we are all trapped inside, we thought it would be helpful to share three at home science ideas which will keep your kids off the screens, interested, and learning.

Fort Building - Project #1

A fort can be a special place to read a book, play games, share stories with friends, or keep us warm in this cold weather.  The cool thing is this project is filled with hidden science (stability, measurement, design trade offs, cross bracing) and most importantly fun.

Build a fort, you can do it! Take some of your blankets, old amazon boxes, nearby furniture, and a cool lantern to create a space that is warm cozy and insulated from the freezing weather outside. It is also a magical place for imagination, creativity, and a place your kids can call their own.

This is a great way to challenge your kids with questions and encourage them to create. Can you make an entrance into your fort without all of the cold seeping in? How can you use your imagination to think about house design - do you want a secret storage area, skylight, retractable roof, windows, different rooms, a living room with a couch and book holder.

P.S. - if you want full instructions on how to create a fort, check out our Nov 2017 blog past

Melt Snow.PNG

Melt the Cold Snow - Project #2

Have you ever wondered what was in the back of the big snowplows that drive down the snow covered streets?   The trucks are full of salt and sand to not only help give grip to the road so cars don’t slip and slide, but also to help melt the snow (by lowering the freezing temperature of water).  Test it out at home by scooping up some of the cold snow outside in a cup or bowl.  Add small pinches of salt at a time to see what happens to the snow?  Does it stay cold and solid? Does it melt?   What other kitchen items can you melt the snow with?  Should we put ketchup on our streets?

Snowballs are cool, so is playdoh - Project #3

How about designing your own playdoh? This is a great hands on experiment that won’t mess up the house too much.

If I bring snow in from outside, it would be too cold to play with and melt.  There is something we all can create which is fun to play with that is kind of like snow. Try making a simple dough batter out of Flour, Salt, water and a little oil.  Experiment with the different ratios of flour and water to find the perfect dough.  Can you make a snowman that doesn’t melt?

Kids Science Labs rocks WGN Around Town

An amazing morning of science with Ana Belaval & WGN

Today we had a chance to hang out with one of our favorite people, Ana Belaval from WGN and do some hands-on science.  It was a great morning, where we got to explore polymers, water filters, the properties of dry ice, and how strong everyday materials  (cups and cardboard) can be to build a real chair.  

Each and every day, we are looking to enable the next generation of creative thinkers and science is a tremendous vehicle for learning how things work, especially for children 2-14 yrs old.  Every class we teach starts with a question to explore and focus on guiding kids to find answers, instead of just telling them something abstract in a science book.  Bringing science to life with context makes it accessible, fun, and interesting.  

We recognize that having fun is important, and while music, sports, other activities are indeed fantastic, children as young as 2 yrs old can experiment with a popsicle that melts and why viscosity is cool. That's science. That's KSL. 

Check out the video here

Why a Cardboard Box is cooler than a xBox?

Why a Cardbox box is better than an xBox!

It is Friday after Thanksgiving, it's a long weekend and the family is trapped in the house.  Now that sounds like a potential problem, ripe for being bored and getting into trouble.   

Fortunately, in your house you have three of the most creative ingredients ever:  you, your kids, and a cardboard box.  That’s right, a cardboard box just might be the most creative material ever. You may have some cardboard boxes lying around after some Black Friday shopping.  They can be put to great use to entertain your kids without “screen time”, all while encouraging their creativity. 

Cardboard House

So, let’s build something.  Cardboard boxes can turn into just about anything.  Not only can they enable your kids to design something, they will love constructing the project with you, learn that mistakes and iteration are cool, customize the inside of their very own space, and create a great family memory. 

Even better, this isn’t that time intensive, nor does it require engineering expertise.  

Here are the basic steps

  1.  Pick out a space in your house and be prepare to spend 1 hour – designing, laughing, taping, and having fun with your kids.
  2.  Come up with potential ideas – often this is the hardest step, some ideas are below.
  3.  Start with a drawing.  Any drawing.  Really.  Just draw something
  4.  It is ok to make mistakes. 
  5. What do you need:  Cardboard boxes, duck tape, scissors, a pensile, paper, a ruler, and a cutting surface.
  6. Your final design will not be exactly as you envisioned.  That is good.
  7. Add some customization.  Why is this important?  This is where you can allow your children to have their imagination run wild.

Why is this a cool project?  We all love being creative, but often in the rush of our day to day, don’t get the chance.  Halloween is a great example, it allows us to be kids again, to be creative coming up with unique costumes.  That doesn’t need to be constrained to one day a year

Xbox is cool, but creating something is even cooler and more memorable.  Your kids may resist initially, but just wait until they are playing in their box creation 3 hours later. 

Your kids will love their creation because it is theirs.  Their design, their safe place, and place to dream.  Not only does this project engage their creativity, but it allows all of us to practice design thinking, creating something from scratch, to have a vision, to create a prototype, to make mistakes, to use our creativity to problem solve, and to be proud of our creation. 


Let’s design and create.  Ready to build, let’s get rolling.  Here is where to start.  And don't worry, some pro-tips and examples for construction are below

  1. Pick out a space in your house and be prepare to spend 1 hour – designing, laughing, taping, and having fun with your kids.
  2. Come up with some potential ideas – often this is the hardest step.  Prepared to be surprised.  We have built: (1) rockets with boxes and old car seats,  (2) homes with retracting roofs/lights/doors, (3) A secret escape room with water and food supplies, (4) reading rooms  (5) boats, and (6) castles. 
  3. Start with a drawing.  Any drawing.  Really.  Just draw something and have your kids draw something.  It doesn’t need to be perfect and often it is better if it isn’t perfect. 
  4. It is ok to make mistakes.  The hardest step is often getting started.  Demonstrating to your kids that you are not a perfect artist or architect it a good thing, it gives them permission to make mistakes in life.
  5. What do you need:  Cardboard boxes, duck tape, scissors, a pensile, paper, a ruler, and a cutting surface.
  6. Your final design will not be exactly as you envisioned.  That is good.  Welcome to design thinking and innovation.  The first prototype is just that, it is great, imperfect, and teaches us how to do something better. 
  7. Add some customization.  Why is this important, this is where you can allow your children to have their imagination run wild.   Crayons and markers can represent TVs, iPads, control panels, doorbells, the ceiling of the Sistine Chapel, art on a wall. 
  8. Helpful tip: have a couple of holes in the ceiling or windows for airflow. 


Keys & Tips

  1. Picture how the pieces will fit together
  2. Have a cutting surface
  3. Measure twice, cut once. 
  4. Never cut towards your body or with someone behind you
  5. If the box isn’t big enough, no problem.  Here are a couple of solutions  (1) tape existing boxes together (2) home depot sells moving boxes for about $2.50 each (3) dollar tree has 2ft x 3ft foam board for $1.


Here are some pro-tips for building

Lay out of your materials – have a design on paper and in your head


Mark where to cut prior to cutting


Overlapping the boxes and taping with duck tape will keep the house strong.  Duck tape is your friend, tape the bottom, sides and roof of the boxes.



Customization is cool – add roofs (just try something and if it doesn't work, try again)


Why do Hurricanes spin the way they do?

Kids are curious and their questions matter. All day they are asking about what they observe, wondering how things work, and applying their curiosity to our world in exciting ways. For example, my six year old asked me yesterday on the way to school “ Why can’t you drive faster on the side streets”, which just was a beautiful observation that led to a interesting conversation on risk, safety, and noise pollution.  KSL Parents know that all of our classes that we teach start with an engaging question that is asked by a child, and only then do we experiment, discover, and use creative design to apply science principles to innovating things like chairs made of cups or night lights made of LED’s for our student population, starting at age 2.  Our parents have been asking us for years to blog on the same cool science that we do in class each week and provide a forum for our students to ask their questions. So here you go, some hopefully useful news to engage your own curiosity as parents and help you to engage your kids in the car with some discussion. Enjoy!

There has been a lot of news recently on Hurricanes, with Hurricanes Harvey, Irma, and Maria reeking havoc on in the U.S. South and coastal islands.  One child asked us “Why do hurricanes spin that way”? It is a really an interesting topic and fundamental question. Many people know that most hurricanes originate in warmer climates, and that they involve fast moving winds, so let’s start by just figuring out what the problem is?  The main problem is that the earth is constantly moving, and its environmental conditions are constantly changing and evolving. It is this movement and the changes in the environment that end up creating a basic weather phenomenon, wind. We can’t even talk about hurricanes without talking about wind. If we know that the earth has air, the question really starts with why that air starts to move in the first place. Air, like most other natural phenomenon, wants to be in the least disruptive place, so whenever there is high pressure, it moves away towards low pressure. It is this basic movement of air from high pressure zones to lower pressure zones that creates what we call wind.   So when you see a lot of wind, it usually means that a very high pressure zone has moved in and the air is running away from it to find the nearest low pressure zone (peace).  This of this like a letting a balloon go, the air shoots out because inside it is stuffed in (high pressure) and it is trying to get out to the low pressure.  

Anything requires force to move, so wind is simply air that is in motion, moving away from high pressure zones to low pressure zones. Imagine you were sitting at the top of a slide, but haven’t moved yet. Then some big kid comes along and pushes you, whether you like it or not, you are moving. The bigger and harder the push, the faster your body is going down the hill. This example if important, because gravity and the environmental conditions (wetness, heat, etc) are also big effects in producing lots of wind, just like being pushed down a slide. 

Phew! So now that we are all on the same page that wind is just the earth pushing air around us, because there are strong forces (differences in high and low pressure generates force), lets get to the real question that this kid is having. 


Why do Hurricanes Spin The Way that they do? 

Scientists will tell you the basic science that hurricanes in the Northern Hemisphere typically rotate counterclockwise and in the Southern Hemisphere they rotate clockwise. But why? Well, to a child, it is like watching anything that spins, the air around it is going to move in the direction of motion of the object spinning. Since the Earth moves or spins to the right, the strong winds that are experienced by a hurricane are typically moving in that same direction. Regardless of whether the hurricane is moving north or south, it is spinning to the right because the earth is pushing it that way. 


If wind is the basic motion of air from high pressure to low pressure that is happening all the time everywhere on the planet, then its motion is almost always curving to the right, because that is the direction of the earth. There is a technical name for this called the Coriolis Effect, but that is not necessary to talk about to kids, just put that in your pocket for your next cocktail party!  So when you are in the Southern Hemisphere (south of the equator), and traveling north, the earth is going to push the wind to the right as that is the direction of its spin, which creates a clockwise spin for any hurricanes moving north through the southern hemisphere. If however, you are in the northern hemisphere and traveling south, the earth is still pushing you to the right, however the motion that results is counterclockwise. To show this to your kids, just have them draw a line with an arrow pointing downward on a piece of paper and then slightly bend the arrow it to the right and see that it starts to move into a counterclockwise rotation. Now draw the opposite line with an arrow pointing upward and slightly bend it to the right to see that it starts to move into a clockwise rotation. If your child is drawing the line, just slightly push her finger to the right while she is drawing and the circular motion will start to look like a clock moving in the wrong direction if you keep pushing their finger. 

That, our friends, is what creates the basic motion of a Hurricane in each of the hemispheres. Typically, Southern originating hurricanes moving north are clockwise and Northern originating hurricanes are counterclockwise as shown below. 


Now that we understand that wind is just the resulting motion of air from high pressure to low pressure, and that hurricanes spin clockwise or counterclockwise almost entirely based on their origin and the rotation of the earth (Coriolis Effect), we can begin to talk to our kids about environmental conditions. A Hurricane needs food to grow big and strong, and the food that hurricanes love the most are water, warmth, and strong differences in pressure. When the wind starts to move over water, it is called a Tropical Depression, which is basically strong enough to feel (up to 38mph), but doesn’t cause major damage most of the time. When the wind feeds on water that is evaporating, warmth, and pressure difference, the wind gets stronger and can build into a Tropical Storm (winds 39-73mph).  A tropical storm causes damage, but it not nearly as bad as what happens next, which is a Tropical Hurricane (winds > 74mph). 

A basic hurricane has a low pressure center (peaceful in the middle), with ridiculously strong winds immediately boring this low pressure EYE and winds that decrease in strength as you move further away from the eye of the hurricane.  There are hundreds of tropical storms a year, and only some of them have the right mix of wind and pressure conditions that they develop into Hurricanes (Category 1 - Category 5). Hurricanes, Typhoons, and Cyclones are all the same thing, they just originate in different zones. 

When discussing with kids, there is a basic experiments that can do to demonstrate their power at home.  The first is to grab an empty two liter bottle and fill it with water. Put a tiny bit glitter or cinnamon (colorful spice) into the bottle and fill it up. Then, just turn it over and watch the water flow out, as you observe it, the glitter or cinnamon won’t do anything.  Next, repeat the experiment, but as you turn the 2 liter upside down, give it a tiny circular spinning motion, which will start a vortex (higher speeds of motion) and the kids will see that the glitter is now moving violently in a circular motion and the water will pour it twice as fast. This helps kids see that circular motion effects an increase the rate of water being dumped and simulate the naturally occurring rotation effects on wind as the earth moves.  If you happen to have small solid object that will fit into the water, it makes for a really interesting observation as the spinning vortex will whip that object around the 2 liter as the vortex pushes everything down! 

Ok, so wind is simply motion of air that is caused by differences in pressure, the earth spins to the right, hurricanes develop over time under the right conditions of warmth, water, and pressure, that are sustained, and if you know the hurricane develops in the south or the north, you can reasonably predict whether it will be spinning clockwise (destination Northern Hemisphere from Southern Hemisphere). That’s cool. So what is all this recent media business on whether Hurricanes are getting worse. Well, it turns out, that climate change suggests that our climate is getting warmer. The basic principle is that since the oceans are getting warmer, then the evaporative movement of water will be forming more storm clouds, which will experience higher pressure differences, which will create faster movement of wind, which will increase wind speeds with circulation motion, which will result in stronger hurricanes. :) A Category 5 Hurricane can raise water levels up to 20 feet, which is why there is so much flooding during a hurricane. Water is literally being pushed by the wind over long distances and it piles up onto the shore or in other instances leaves beaches with dry ocean beds.

We could talk about this topic forever, but we will start with some basic problem solving. We can’t really control mother nature, so Hurricanes and Storms will happen. However, if you look at how you theoretically stop them, there are three basic methods:

  • Cool The Air
  • Remove the Water
  • Disrupt the flow of Air with large objects/deflectors (friction is the force that slows things down as we are learning over the next two weeks at Kids Science Labs)

When speaking to kids, we can’t really talk about complexity, as they just are not that interested in that deep level of detail. The basic reason that Hurricanes Spin the way that they do, is that the earth is spinning to the right, and all hurricanes have wind that is being pushed to the right. It just matters whether the hurricane is traveling to the South or traveling to the North, that causes the hurricane to be Clockwise (Destination Northern Hemisphere) or CounterClockwise (Destination Southern Hemisphere). Some of your kids may want to know more, and if so, just bring them to Kids Science Labs because we do this stuff all day. We are the place to bring the curious child to be engaged and learn about how the world works! 


If your child has a question that involves science, please let us know and we will address it on Facebook or via a new feature of “I Have A Question”, a regularly occurring blog explaining basic science to kids around the world. Just email your question to “” and our team of passionate teachers, engineers, and parents will gladly get back to you.