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Science fair project that compares tap water and bottled water for the presence of common impurities.

How to test for acids and bases? In this activity you and your child can make your own indicator from red cabbage!

Science fair project that measures the relative times it takes a plastic bag and a biodegradable plastic bag to decompose.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Bring back the groovy memories by making shrinky dinks using household materials, while learning about the science of plastics. Here's how to get started:

This science fair project idea will be examining oxidation and acid rain

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

Research historic methods of food preservation. Analyze alternative recipes and techniques of food preservation. Document success with photographs.

Devise list of randomly chosen words, test how many words volunteers can remember. Compare results of adults and children. Which have better memories?

Study emulsifiers and learn how they are used in food science, medicine, soaps and cosmetics. Identify which materials are created using an emulsifier.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

Use a dichotomous key to identify plants or animals.

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

Polymers remove oil from contaminated waters. The purpose of this science project is to test the effectiveness of a polymer in cleaning up an oil spill.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

Check out this fun science fair project idea to explore fun facts about fruit juices and learn why do juices turn bad in the fridge.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Science fair project that demonstrates the principle of conservation of mass by conducting a chemical reaction inside a sealed Ziploc bag.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Your 1st grade scientist will improve her observation skills as she's encouraged to eat healthy by comparing the dry and fresh fruit in this experiment.

Which battery lasts the longest? In this science fair project, kids will test popular brand name batteries like Duracell and Energizer against generic brands.

Here's a household scavenger hunt that shows kids the natural sources behind everyday objects...and builds reading skills, too!

The objective of this science fair project is the compare the rate and efficiency of disaccharide and polysaccharide fermentation by yeast.

Science fair project that compares tree leaf size and shape based on the leaf's position in the tree. Is their is a noticeable difference between high and low?

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Which sunscreen is most effective at blocking the sun's harmful UV rays? Test the SPF of various sunblock brands in this cool science project!

This science fair project idea determines if material and tensile strength of different types of skateboard wheels affects the velocity of the skateboarder.