Determine whether a hot liquid cools off faster when liquid is added before or after a two minute wait.

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

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.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

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

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.

Thermometers are how we measure temperature, and we've all heard the terms "centigrade" and "Fahrenheit" tossed around, but what do they really mean?

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Which public places harbor the most bacteria and germs? Test different environments to find out where the most bacteria live in this science project.

This science project challenges students to take learned information about weather and climate control and apply it to come up with creative ideas of their own.

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

see whether all liquids evaporate at the same rate. In other words, does water evaporate at the same rate as juice?

This project explores whether music affects the growth and health of plants.

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.

Explore the wattage of microwaves in relevance to cooking time.

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.

Do you think heat can affect a plant's growth rate?

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

This do-it-anywhere guessing game helps reinforce number concepts. And it's a blast to play.

Determine which environment keeps an ice cube frozen for the longest duration. Inspect and record your observations when cubes melt.

Does your child love learning about dinosaurs? Does he like digging around in search of hidden treasures? In this fun activity he'll do both!

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.

Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?

Study the impact of environment on seed germination among three materials: soil, paper towel, and cloth. Note when seeds germinate and how well they germinate

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Easy and cool middle school science fair project on ripening process of fruits and measures you can take to prevent fruits from rotting and delay ripening.

How do cold packs work? Explore endothermic reactions by comparing the temperature change that results from various chemicals added to water to find out!

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.