Showing Results for three digit using : Page 2

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

In this awesome science fair project idea, kids will be attempting to pick up different objects using snail slime.

Show your preschooler how to make a print of a butterfly using her hand as a tool--a great way to stimulate her sense of touch.

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!

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!

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

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

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

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.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

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

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

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?

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

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

Blend art and science in this hands-on activity that shows your kindergartener how primary colors combine to make secondary colors.

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!