Showing Results for three digit using place value

This project compares the strength of one, two, and three-ply toilet paper.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

In this project students experiment with making music using only glasses of water.

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

In this science fair project you will make a model of a cell membrane using very simple material.

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.

Using a toy race car kids create a visual model of the Doppler Effect.

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

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

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.

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

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

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

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

This project investigates the affect of storage temperature on microwave popcorn.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

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!

Science fair project that examines condensation and the conditions needed in order for dew to form.

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?

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

In this experiment we will be determining whether birds prefer certain colors of seed.

This science fair project idea explores how length affects the weight a bridge can hold.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.