3rd Grade Science Projects Activities : Page 5

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

This science fair project idea demonstrates that plants give off water.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

This science experiment has students test whether a snail moves faster on concrete or dirt.

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

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.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This science fair project idea investigates the difference in reaction times between boys and girls.

This science fair project idea investigates if fats add to the flavor of food.

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

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.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

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.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

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.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

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