3rd Grade Science Projects Activities : Page 7

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

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

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

In this project children practice the scientific method while playing with puffy paint.

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

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

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

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

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

How do organic materials become soil? This science experiment measures what materials biodegrade.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

In this science fair project you will make a model of a cell membrane using very simple material.

Explore if planting seeds in a certain direction will affect how fast it germinates.

This science fair project examines how seeds hitchhike on animals and clothing.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

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