Showing Results for two digit using place value : Page 5

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

This science fair project idea explores the egg's thin membrane.

This science fair project teaches students about wilting and browning of salad greens.

Learn all about balance and motion as your child designs a corn maze!

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

What happens when eyes see something that the brain knows cannot be true? In this science activity, the brain has to "fudge" it when interpreting what you see.

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

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

This science fair project idea explores whether talking to a plant will help it grow.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!