3rd Grade Engineering and Science Inquiry Activities : Page 4

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

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 examines whether plants are still able to grow normally if they are turned upside-down.

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

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

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

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

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Make a backbone model to explore human anatomy and life science.

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!

Do different types of oil mix or stack? Find out in this science fair project idea!

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

This science fair project idea examines which type of insulation holds in the most heat.

Test whether plants can grow without sunlight and water.

This science fair project idea determines which method of hand cleansing is the most effective.

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

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

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 will help students learn about non-vascular plants, such as mosses.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

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

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

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

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.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?