Showing Results for two digit using place value : Page 3

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

In this activity your child will create their very own marble maze!

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

In this experiment you will replicate the mummification process by making a hot dog mummy.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

This science fair project examines how seeds hitchhike on animals and clothing.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

In this project children practice the scientific method while playing with puffy paint.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

How do organic materials become soil? This science experiment measures what materials biodegrade.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Discover whether cold or hot water from the faucet will boil faster on the stove.

This classic children's game demonstrates how sound travels through air vs. through a solid.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.