Fall is almost here. That means Halloween is almost here, too. What do you do when there is an oversupply of candies in the house? (yeah, right.) Candy science experiment, of course! This experiment is really spectacular to watch, but the science behind is pretty complicated… actually, I haven’t found a definitive scientific explanation agreed…
Middle Grade 6-8
The Best Homemade Lava Lamp | Density Experiment
How to make the perfect lava lamp? We experimented with a few different ways and will show you what we found out. What you need water oil (we used baby oil and vegetable oil) food coloring Alka-seltzer effervescent antacid tablets tall glass or bottle Steps Fill the glass with 1 to 2 inches of water. Add…
Build A Paddle Boat | STEM For Kids (Video)
Water science experiment is always a hit for kids. Building a paddle boat is so easy and so much fun. Just use things you probably already have around the house. Let’s get started. You have just built a paddle boat! In a real paddle boat, the spinning drum of paddle boards acts as oars, pushing against…
How Fish Dive And Rise | Cartesian Diver Experiment (Video)
Do you know how fish dive or rise in water? Here is a simple Cartesian Diver experiment to show you how. Why This classic experiment is called Cartesian Diver, named after French scientist, mathematician and philosopher scientist, René Descartes. It demonstrates the principles of buoyancy and density and explains how fish dive or rise in water. Buoyancy: the force of buoyancy on…
Do Grapes Sink Or Float? | Salt Water Density Experiment
Do grapes sink or float? In the picture above, you can see that grapes can both sink and float. Why is that? What determines if an object sink or float in water? Try this experiment to learn about water density. What you need some grapes 2 clear glasses tap water salt stirrer Steps Fill the two glasses…
Magical Rising Water (Video)
We normally don’t play with fire (for obvious reasons) But here is a magical experiment I didn’t expect to be so easy and so much fun to do. At the same time, the results are so hard to understand, with, sadly, much misleading information on the internet. As always, adult supervision is required (THERE IS FIRE INVOLVED). Why…
Traveling Water Experiment
Have you seen traveling water, i.e. water traveling from one cup to another without being close together or one directly above the other. It can be easily done with the help of a string! This traveling water experiment has demonstrated two important properties of water. Cohesion: Water molecules are attracted to one another and so they…
Floating Rice – Simple Friction Experiment
Friction Experiment We can pick up rice grains using a pair of chopsticks. But can you pick up a bottle of thousands of rice grains using only one chopstick? Why When you first fill the bottle with rice, there is a little bit of space, i.e. an air pocket, in between each grain and its neighbors. As…
Double The Money! Science Experiment
Do you like magic? Here is a simple magic to impress your toddler or preschooler. It makes use of the optical property of water and air. What you need a clear glass water a penny (or any coin) Steps Put a penny into an empty glass. Position your head so that you see the coin from…
Make A Sundial
Have you ever wondered before the invention of clocks, how was time measured? As far back as 1500 B.C., ancient Egyptians used a sundial or “shadow clock” to tell time. In this experiment, we will build a homemade sundial and see how sunlight can be used to measure time. Let’s get started! What we need a paper…
Surface Tension Water Experiment – Water Drops On A Penny
Recommended Products Ezy Dose Straight Tip Glass Medicine Dropper 3ML Disposable Plastic Eye Dropper Set Transfer Graduated Pipettes Why Water molecules attract each other and tend to stick together. This cohesion property results in surface tension. Because water molecules at the surface of the water puddle attract more to one other than they do to the…
How Do Convection Currents Form Experiment – Thunderstorm Weather Science (Video)
Even though there is a severe drought in the area where we live, thunderstorms are still a common spring occurrence. I have shown my kid how rain was created before. Now she’s curious how thunderstorms form and what causes them. So what is a thunderstorm? A thunderstorms is a storm with lightnings and thunders. What causes…
Toothpick Trick – Science Experiment For Kids
Here is a super fun toothpick trick: turn broken toothpicks into a star! Want to see more about how wood and plants absorb water? Try this awesome Color Changing Flowers experiment! Want more water science experiment? Water science is so much fun. Properties Of Water has tons of interesting water experiments you can do in the…
Refraction Optical Illusions
Refraction Of Light There are so many good refraction of light experiments we want to do. Here are a couple of our favorite optical illusion tricks using the light refraction property. What you need a drinking straw or a pen a glass of water Steps: Experiment 1 Put a straw into the glass of water vertically and watch from the…
Refraction Of Light – Simple Water Experiment (Video)
Why Have you noticed that things look a little funny when you see them through a glass of water? Some of the aberrations are caused by the imperfection in the glass production. But there is more to it. Refraction is the bending of light as it passes from one transparent medium into another. This bending…
Balloon Rocket Car Race | Propulsion STEM Activity
Propulsion And Newton’s Third Law How do airplanes fly in the sky, ships move in the water and rockets take off into the space? These movements all have one thing in common — thrust. Here is a fun science experiment to show how propulsion creates thrust to move vehicles. What you need a toy car(s) (You can…
Build Marble Roller Coaster | STEM
If you (or your parents) have a roll of unused baby edge guard lying around, this is the perfect STEM activity for you. Have you ever wondered why the string of roller coaster cars is pulled up to the crest of the tallest point on the roller coaster before rolling downhill to the loop? Have you ever wondered why…
What Makes Ice Melt Faster? Salt Melts Ice Experiment
Here is a quick and easy ice fishing experiment. It is so cool (pun intended) that you will want to do it again and again (I did!) In this experiment, you will use only a thread and salt to lift a sticky ice cube. It is just like fishing in a pond, but in this…
Color Changing Flowers Science Project
Do you know that flowers can drink up water and change their own colors into the color of the water they drink? Flowers and plants drink water through their roots. In cut flowers, since there are no roots, water travels from the cut directly into the stems and travels to the petals and other parts…
How To Make A Rainbow – Simple Science Experiments
How Are Rainbows Formed? Sunlight or white light is a mixture of all the rainbow colors. The different rainbow colors are essentially mixed together to result in a white color. You may wonder why when you mix all the different colors of paint together result in black instead of light. That is because light mixing…