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.

Learn about the Atwood Machine and Newton's 2nd Law with a pulley and masses of different weights in this physics science project.

What is a series circuit and how does it work? Learn about voltage, electrical current, and resistors in this cool science experiment!

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Learn about emulsification and bile's roles in digestion, and investigate how the digestive enzyme lipase breaks down lipids.

Young physicists learn about apparent weightlessnessâthat weird sensation you sometimes feel in elevators, turbulent airplanes, and roller coasters.

This conservation of energy demonstration shows why the first hill is the highest on a roller coaster. Learn more about potential and kinetic energy!

In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

Learn about the horizontal and vertical motion of a projectile in this cool physics science fair project idea for advanced middle and high school students.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

The actual factors affecting friction may surprise you! Learn about the coefficient of friction and put some trigonometry into practice in this science project.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Check out this hot project idea to culture bacteria and determine if the claims about the anti-bacterial properties of curry and cinnamon are true.

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

Learn about the Hardy-Weinberg principle and how genetic equilibrium can be used to measure genetic variations in this fun science fair project idea.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

In this fun science experiment, make a balloon car and test it on different surfaces to learn about sliding friction and rolling friction.

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

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

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.