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Showing Results for least common multiples

Salmonella and E.coli are common food contaminates. This experiment measures the time it takes for E.coli and Salmonella to reach hazardous levels in fish.

Food Contamination

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

Foam It! Cause a Chemical Reaction

Find out whether freezing or refrigerating destroys more bacteria. This is essential to consuming safe and germ-free food.

Is It Better To Refrigerate Or Freeze To Prevent Bacteria On Foods? 

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Make Your Own Marshmallows

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

Foggy Fun

Whatever is stacked in your cupboard can be used to help your child learn how to compare fractions and decimals. A great hands-on math lesson!

Play Pantry Math

A fun activity for a hot day, this will give young kids a chance to experiment with beginning science and math â and splash around in the process!

Poolside Science

Take a stab at 18th century American cooking with your kids by following this tasty recipe from one of the first colonial cookbooks.

Bake Colonial Pumpkin Pie

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

How to Make A Thermometer

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

Counting Air Particulate Matter

Check out this cool science project idea to explore how temperature creates annual rhythms that govern plant growth.

Forcing Plant Bulbs 

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

How Solar Energy Heats Liquids of Different Colors

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

Does Hot Water Boil Faster Than Cold?

Discover if temperature settings in a fridge make a drastic difference in terms of bacterial growth.

What is the Ideal Temperature Setting for Refrigerators?

Germination: "The Birth of a Plant"

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

Does Liquid Weigh More after Freezing and Boiling?

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

How Old is That Tree?

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

What Causes Dew?

Did you ever drink spoiled milk? Find out whether whole milk spoils at the same rate as 2% and skim milk.

Milk Experiment

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

Air Pollution

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

Where Should You Store Your Popcorn?

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).

Good and Bad Lipids

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

Don't Have a Meltdown!

Examine the connection between temperature and chemiluminescence.

How to Keep Your Light Sticks Lit Up Longer

Have your child observe, measure and record the amount of space objects occupy, and you'll have an inside space explorer on your hands in no time!

Area and Volume

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

Why Doesn't the Ocean Freeze?

Did you know cooking supports your child in learning complex math skills? Reinforce your child's measurement and problem solving skills by whipping up some healthy sweet potatoes for a dinner side dish!

Stuffed Sweet Potatoes

This project explores what happens to a rubber band when it is heated and cooled.

How Does Temperature Affect the Stretch of Rubber Bands?

Science fair project that cultivates slime mold and monitors the stages of its development.

Blimey! It's Slimey!

Examine the presence of seeds in open fields. Collect seeds on socks by walking through open fields of grass or other growth. Germinate seeds on socks

Green Toe

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