Showing Results for three digit using place value : Page 2

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.”

Learn how to relight a candle by lighting the vaporized wax in the smoke, and test how various kind of wax and candle brands relight differently.

This experiment investigates whether smell can be used to enhance test subjects' memories.

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

Explore how you can achieve magnetic levitation with the Meissner Effect! This cool science project explains formation and applications of a superconductor.

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

Students identify variables that affect the duration of high school romances and analyze data to predict the success or failure of ongoing relationships.

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

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

Explore the properties of light and color using photographic filters. Take pictures of color spectrum, compare results of different filters.

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

This experiment demonstrates the conservation and transfer of energy using a marble rolling over sandpaper.

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

In this science fair project, students determine whether a bean plant grows faster and taller using a traditional soil planting method or hydroponic method.

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

This science fair project idea designs safe bicycle routes using GPS.

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

Evaluate whether people can raise the temperature of their finger using the power of their thoughts.

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

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

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.

Create uphill flow of water by using a siphon. Create vacuum by suctioning one end of tube, and submerge it under water. Watch the direction the water travels.

Free science fair project idea that measures change in flexibility with age, using a variety of flexibility tests like Sit & Reach.

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

Science fair project that creates fog using bottles of hot and cold water.