Showing Results for three digit using place value

This science fair project investigates why the number of visible stars changes from place to place.

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

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

This science fair project idea identifies trees using a dichotomous key.

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.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

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

This science fair project idea produces sounds by creating vibrations using different objects.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

Construct and experiment with a periscope using reflected light rays to gather an image.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

In this design challenge, your child will create a parachute for a small toy using typical household items.

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

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Reinforce your child’s understanding of the alphabet by helping them construct all of the letters using pipe cleaners.

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

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

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

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.