3rd and 4th Grade Engineering and Science Inquiry Resources : Page 10

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

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

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

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.

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.

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

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

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

This science fair project idea produces sounds by creating vibrations using different objects.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

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.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

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.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

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?

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.