In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

Learn how to make a paper snowflake with these simple instructions. Help your child learn how to make a paper snowflake with only paper and scissors.

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?

Learn how milk freezes into ice cream. Does the fat content affect how quickly the milk freezes? What is salt's role in the freezing process?

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

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

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

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.

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!

This experiment investigates if stress alters body temperature.

Explore the best way to store popcorn kernels. It examines the impact of moisture and temperature on unpopped kernels.

Do your laundry and your science project simultaneously! This science fair project investigates whether the color of a garment affects the time needed to dry.

Will your liquid weigh less once you remove the fat from it? Find out in this science fair project idea.

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.

This experiment investigates if small changes in your diet can alter your basal body temperature.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

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

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Read on this high school science fair project idea to get basic information on the process of heat transfer and the conditions under which the transfer occurs.

This experiment evaluates if the temperature of the environment that you work in affects your ability to perform mental tasks.

Examine the connection between temperature and chemiluminescence.

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

Determine the differences between various bicep exercises, both in terms of how much muscle exertion they create and how they affect your heart rate.

The objective of this experiment is to evaluate the effects of acid rain on plants.

This project examines how temperature affects the volume of gas in balloons.

In this activity, you child will learn about how heat changes food. On the next sunny day, head outdoors to make a treat in an outside oven! Here's how: