2nd - 4th Grade Engineering and Science Inquiry Resources : Page 15

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.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

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 build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

This science fair project idea explores how length affects the weight a bridge can hold.

This science fair project will help students learn about non-vascular plants, such as mosses.

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

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

Learn whether writing things down really makes things easier to remember.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

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

In this experiment we will be determining whether birds prefer certain colors of seed.

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!

In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

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.

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.

Determine if gender affects the ability to identify different smells.