Showing Results for three digit using : Page 2

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

Got a birdwatcher on your hands? Bring the birds to your backyard by making a zany bird feeder using an orange and some string.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

Your child will do a fun science experiment using soap and pepper flakes to help understand the concepts of water molecules and the surface tension of water.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

This science fair project idea examines which type of insulation holds in the most heat.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Here's a fun science experiment that's refreshingly tasty too! Turn regular water into a tasty treat perfect for consuming on a hot day.

Get your child outside to observe the clouds, and get a fun exercise in science, writing, and arts and crafts! Here's how.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Is it a square or a circle? See if you can trick your friends with this zany science project!

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

Your child can use leaves and grass to create his own outdoor art in celebration of Earth Day...all he needs are is the great outdoors and some creativity!

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Slip some science into storm watching with a homemade rain gauge!