3rd Grade Engineering and Science Inquiry Resources : Page 4

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

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

Science fair project that examines condensation and the conditions needed in order for dew to form.

This science fair project idea explores substances that cause a bubble to last longer.

In this experiment you will replicate the mummification process by making a hot dog mummy.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

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

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

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

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

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

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

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

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

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

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

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

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

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

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

This science fair project teaches students the differences between fruits and vegetables.

This science fair project idea examines the reason boats are shaped and engineered.

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!

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

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