Elementary School Science Experiments (Page 81)

How a Comet's Size Affects How Fast It Melts

Science Fair Project Idea

Scientific Method

Comets—big lumps of rock, ice, and frozen gases that orbit the Sun—are among the most amazing heavenly objects seen in the night sky. The glowing tail behind the comet's nucleus inspires wonder. But did you know that a comet's tail is evidence that it's melting? As a comet passes by the Sun on its orbital path, it starts to melt. But do bigger comets melt faster than smaller comets? In this astronomy science project, you will investigate how the size of the comet affects the… Read more

How Do You Get Heat from a Supercooled Solution? Explore the Chemistry Within Hand Warmers

Science Fair Project Idea

Scientific Method

You're at the high school football game and it's getting pretty chilly as the sun goes down. You're determined to keep cheering for your team, but your hands are freezing—have you ever tried hand warmers? The chemistry within these little packets is pretty cool. Hand warmers provide a unique and fun way to study the chemistry of crystal formation and heat generation. By pressing a button in a pouch, which contains a supercooled solution, you start a rapid exothermic (heat-producing)… Read more

How Does Solar Cell Output Vary with Incident Light Intensity?

Science Fair Project Idea

Scientific Method

Solar cells are an alternative method for generating electricity directly from sunlight. With this project, you can get down to the atomic level and learn about the world of solid-state electronics as you investigate how solar cells work. Your experiment will measure the effect of changing light intensity on power output from the solar cell. A possible variation would be to investigate the effect of changing the color of the light. Read more

How Protective is Your Helmet?

Science Fair Project Idea

Scientific Method

Every time you hop on your bike or gear up for football or baseball practice, your helmet is your first line of defense. Whether you’re coasting downhill or tackling on the gridiron, impacts happen — and they can cause more than just bumps and bruises. Scientists tell us that forceful hits to the head can lead to concussions or even more serious brain injury over time. Correct helmet design, proper fit, and good cushioning all help reduce those risks. For example, bicycling is one… Read more

How to Balance Anything

Science Fair Project Idea

Scientific Method

Ever wonder why it is harder to keep your balance with a heavy backpack on? Or why it is difficult to make a toddler's sippy cup tip over? Maybe you are the kind of person who wonders about circus balancing acts and would like to learn how to ride a bike on a rope. Or perhaps you want to know how to make your toy car less prone to toppling over when racing through a sharp curve. In this science project you can learn about balance using marshmallows, skewers, and toothpicks. Sticky, yummy… Read more

How to Build on Mars!

Science Fair Project Idea

Scientific Method

The idea of a colony on Mars is exciting! In this science project, you will tackle one of the challenges a Martian colony will face: what will buildings on Mars be made of? In this project, you will make bricks from Martian-like ground cover and measure how strong these bricks are. Read more

How to Design a Great Cat Toy

Science Fair Project Idea

Scientific Method

Do you love animals and want to help keep them healthy? Well, here's your chance to design and tailor a toy that will bring out your pet's most playful nature. In this science fair project, you'll evaluate the skills and activities of your pet and determine what kinds of toys most excite your pet and make him or her lively and curious. So call your furry or feathered friend, and let the frolicking begin! Read more

Human Perception of the Anomalous Mirror Symmetry Illusion

Science Fair Project Idea

Scientific Method

The Science Buddies project Design Your Own 3D Printed Optical Illusion shows you how to make your own 3D printed "anomalous mirror symmetry" illusions (Figure 1). The illusions are based on the work of Dr. Kokichi Sugihara. You can read his original paper about the illusions in the Bibliography. Figure 1. Two versions of the "impossible arrow" shape that appears to point to the right while its reflection in the mirror appears to point to the left. Which version of… Read more

Ice Cream Science: Weekly Science Project Idea and Home Science Activity Spotlight

Blog Post

In this week's spotlight: a food science family science experiment and independent student science fair project that takes a deeper look at the chilly process of making ice cream. You can make your own ice cream using one of a variety of shaking or rolling processes, including using a baggy to hold the ingredients! How does adding salt to the ice mixture used to freeze the ingredients affect the process? Make your own ice cream to find out! Chemistry of Ice-Cream Making: Lowering the… Read more

Invasive Species

Science Fair Project Idea

Scientific Method

Invasive species are organisms (either plant or animal) that have been introduced into a new, non-native area and spread rapidly in the new environment due to a lack of regulation by predators. Frequently, invasive species will out-compete native species for resources which can put native species at risk. This is an especially big problem for threatened habitat and endangered species, which are already at risk. Survey your area to document cases of invasive species invading a local… Read more

Elementary School Science Experiments (top 2,000 results)

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