To help your child learn how to use a thermometer, try this temperature collecting activity at home.

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.

Science fair project that uses distillation to convert salt water into fresh water.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

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

Ethanol can be used as an alternative fuel! The purpose of this experiment is to identify a starch plant that produces the largest quantity of ethanol.

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

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

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

This potato cannon activity teaches your middle schooler about the principle of Boyle's Law. Make a potato cannon and have a blast learning about science.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

Explore properties of liquids and how temperature and salinity effect surface tension of liquids in this fun- filled science fair project idea.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

Encourage your child to compare and contrast a wide variety of autumn-themed items by weighing various objects and recording their findings.

Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

Check out this cool middle school science fair project idea to determine if shopping carts are really carriers of harmful bacteria.

Thousands of witches that come out to celebrate Halloween. Now, your child can make her very own self-standing witch.

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

This activity spotlights everyone's favorite reindeer, Rudolph, and preserves your child's handprints in his "antlers".

Introduce your fourth or fifth grader to volume by having him build rectangular prisms, and then count each sugar cube to check his volume calculations.

Check out this fun science fair project idea to learn how alkaline batteries convert chemical energy to electrical energy?

Practice conversions within the metric system in this fun math card game for third graders.

These handmade Christmas treat cups are perfect for house parties, school celebrations, and holiday bake sales.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

Practice measurement using centimeters in this fun math race designed for your second grade student!

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.

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

Challenge your preschooler to a game of shape match-up--an entertaining way to boost her observational ability.