2nd - 4th Grade Engineering and Science Inquiry Resources : Page 13

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.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

This science fair project idea produces varying pitches of sound.

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

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.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Is it a square or a circle? See if you can trick your friends with this zany science project!

This science fair project idea investigates whether plants can survive being frozen.

In this activity, your student will be invited to build a chair out of building blocks that is designed to meet the specific size and shape of a small doll or toy figure.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

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

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

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

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

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.

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

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

This science fair project idea investigates the hardness property of minerals.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

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

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

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

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.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

This science fair project idea compares biodiversity between drops of water.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.