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In this activity, have your second grader practice measuring by finding the height, weight, and length of their most treasured toy!

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Science fair project that tests the effects of temperature change on the reactivity of the catalase enzyme.

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.

The purpose of this science fair project is to investigate which food wrapping works best to keep refrigerated and non-refrigerated foods from spoiling.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

The purpose of this science project is to determine which chemical best lowers the temperature of water in a cold pack and if the amount affects its use.

Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

The objective of this science experiment is to evaluate the affects of high and low heat capacity on a material's heat retention ability.

The objective of this science project is to examine the factors that affect the dispersion of oil in water, including water agitation.