Julian's Science Fair
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Elementary School Science Fair Projects (3-5)
Free Project Examples and Ideas by Grade Level

By Grade Level
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By Topic
Astronomy Aviation Biology Botany Chemistry
Earth Electricity Endangered Energy Engineering
Environmental Forensic Health Physics Zoology
Astronomy Aviation Biology Easy Winning

Entire Collection

Determine if all kinds of food waste produce the same amount of methane. [View Project]
Research plankton [View Project]
Determine the best way to keep your dog's teeth clean and to have a "fresh" breath. [View Project]
Compare air oxygen content in the forest to that in the city. [View Project]
Build a variation of a teeter-totter for one person. [View Project]
Which will bounce higher? A basketball with nitrogen in it or a basketball with oxygen in it? [View Project]
The effect of airplane shape, wing shape and wing size on its aerodynamics lift using a wind tunnel. [View Project]
Build a crystal radio and see if it is possible to hear aliens with the radio. [View Project]
Which surface of hydro power line would be best to prevent ice build up? [View Project]
Make a better environmentally friendlier ice melter. [View Project]
How We Perceive Our Own Voices [View Project]
Think, and Change your Dreams [View Project]
Compare short term memory according to gender and age. [View Project]
Compare the amount of omega-3 found in supplements to the amount claimed. [View Project]
Building Musical Instruments [View Project]
Which roofing material is the best choice for Calgary? [View Project]
Find different ways to prevent the damaging effects of soil erosion. [View Project]
Does keeping your window open reduce the damage during a tornado? [View Project]
Energy Consumption Efficiency of Different Kind of Light Bulbs [View Project]
Does the "5 Second Rule", of picking up a piece of food from the floor, work? [View Project]
How Certain Beverages Affect Tooth Decay [View Project]
Determine whether the pitch of a string can be changed by changing tension or length? [View Project]
Radar Detection: How To Make Airplanes Invisible [View Project]
Investigate the Sprague’s Pipit [View Project]
Find out whether micro-algae can produce bio-oil which can be turned into bio-diesel [View Project]
Determine if turmeric can prevent the growth of bacteria which cause foodborne illnesses. [View Project]
The black-tailed prairie dog [View Project]
House Color Effect on the Temperature Inside The House [View Project]
Why is the piping plover endangered and what can be done to help it? [View Project]
Describe the biology and habitat of the swift fox. [View Project]
Explore the burrowing owl [View Project]
Explore the sage grouse. [View Project]
Research The Loggerhead Shrike [View Project]
Design and test a simple waste digester and a gas collection system. [View Project]
Food vs. Fuel [View Project]
The kangaroo rat and its adaptations for survival in a desert habitat [View Project]
Explore where diamonds are found, how they are formed, and what they are used for. [View Project]
Discovering photosynthesis: which colour of light is best for growing plants - green, red or white. [View Project]
How does acid rain affect plants? [View Project]
Does the amount of fertilizer given to a plant affect its growth? [View Project]
The Hawaiian Islands formation and geology? [View Project]
Research the Coelacanth Fish [View Project]
Information about wind energy [View Project]
The effects of water type and temperature on an hydrogen fuel cell efficiency [View Project]
Banana Peel Biomass Briquettes Fuel Efficiency [View Project]
Determine which of the following vitamins A, C, D, or E is the best antioxidant. [View Project]
What is Dyslexia? [View Project]
The best way to prevent bacteria from spreading after someone has sneezed. [View Project]
Which disinfectants are the best at destroying germs? [View Project]
Find out if bacteria enters a beverage when you drink it from a bottle. [View Project]
The effect of pre-test exercise on sixth grade students' math test scores. [View Project]
How did the Ancient Egyptians Mummify? [View Project]
Forensic Determination of Crime Suspects by Lip Prints and Chromatography [View Project]
Fingerprint Similarity Between Siblings and Non-related People [View Project]
Show that biodegradable plastic breaks down faster than regular plastic. [View Project]
What kind of ice melting products work the fastest and damage plant life the least. [View Project]
Greenhouse Effect, Temperature Increase and Climate Change [View Project]
Environmental Audit and Carbon Footprint to reduce greenhouse gas emissions [View Project]
Build a waterslide and research how does it work. [View Project]
Figure out if the flex of a hockey stick makes a shot faster or more accurate. [View Project]
Which roofing material and color offers the best energy efficiency? [View Project]
Research different ways to brake a car and recover the energy from stopping. [View Project]
Methods of storing electrical energy [View Project]
How does precipitation vary around the country? [View Project]
What materials work best in a sandbag for blocking floodwaters? [View Project]
Test whether more expensive towels can retain more water and are stronger [View Project]
Determine which fabric is the best insulator. [View Project]
Which planet in our solar system has the safest environment for humans to live on? [View Project]
Densities of Various Solutions vs. Plastic Separation [View Project]
Practices that might reduce the amount of wastes created at school [View Project]
What is light pollution. [View Project]
How can we save ozone layer? [View Project]
What is the effect of ozone on plant growth. [View Project]
The Effect of Water Salinity and Temperature on Oil Spreading Rate [View Project]
Oil Absorbency of Polypropylene Pads vs. Natural Products [View Project]
Which type of environment is most affected by an oil spill? [View Project]
Explore Global Warming and Arctic Ice Cap Melting[View Project]
Global Warming: What are Street Sponges? [View Project]
How does water speed affect turbidity in a river? [View Project]
Effect of Human Activity on Benthic Survey and Water Quality Parameters [View Project]
Investigate the endangered salmon [View Project]
Explore dolphin bycatch (caught in nets) [View Project]
Farmed salmon effects on the environment and health. [View Project]
Helping painted turtles [View Project]
How the Marbled Murrelet is threatened in British Columbia [View Project]
Explore Endangered Species [View Project]
Will Global Warming affect the Piping Plover's life? [View Project]
Investigate the great basin spadefoot toad [View Project]
Investigate the North Atlantic Right Whale including its threatened status. [View Project]
Investigate turtles and tortoises. [View Project]
Why are coral reefs dying? [View Project]
The Effect of Bleach on the Survival Rate of Daphnia [View Project]
The Effect of Oil, Weed Killers and Salt on the Survival Rate of Daphnia [View Project]
The Effect of Chlorine on the Survival Rate of Daphnia [View Project]
Car exhaust effect on seedlings and germination rate [View Project]
How to reduce car air pollution. [View Project]
How do Vehicles Affect the pH Properties of Snow [View Project]
Extracting copper from ore (biolixiviation). [View Project]
Bacterial Content of Water Bottles [View Project]
The effect of acid rain exposure time and pH levels on daphnia [View Project]
The Effect of Acid Rain on Spider plants [View Project]
The Effects of Acid Rain on Germination? [View Project]
The Effect of Vitamin A on Radish Plants Exposed to Acid Rain? [View Project]
The Effect of Acid Rain on Wheat Grass [View Project]
Determine the effect of acid rain on plant growth. [View Project]
Why does acid rain destroy buildings and pavements? [View Project]
Effect of Acid Rain on the Biomass of Radishes [View Project]
Which Species of Wood Will Produce the Most Thermal Energy When Combusted [View Project]
Which passive solar collector absorbs the most heat? [View Project]
Which Angle of Pitch will Produce the Greatest Amount of Electricity? [View Project]
The Effect of Blade Size (Length, Area) on Electrical Output of a Windmill? [View Project]
Number and Size of Blades of a Wind Turbine vs. Electrical Output [View Project]
How much wind velocity do we need to generate power (light a LED)? [View Project]
Pull a car with water power [View Project]
How Does Dam Water Height Affect the Output of a Turbine? [View Project]
The effect of different types of insulation materials on heat retention. [View Project]
Does temperature affect the performance of a fuel cell? [View Project]
Do different interior designs of a solar oven affect its performance? [View Project]
Box solar cooker vs. funnel solar cooker [View Project]
What is the Effect of Magnification on Heat in a Solar Oven? [View Project]
Is the amount of heat energy used less when there are more kids in the school? [View Project]
The Effect of Candle Wax Hardness on the Burning Time of a Candle [View Project]
How a rifle is affected by weather. [View Project]
How brakes work? [View Project]
Which drink would make a car go the fastest by putting a nitro tablet inside it [View Project]
Is the pyramid the strongest 3D geometric structure? [View Project]
Find out how elevators work using pulleys [View Project]
The effects of the size and shape of a balloon rocket on its flight speed [View Project]
How far paper airplanes go depending on shape, size and weight. [View Project]
Which plane wing shape of five is the most aerodynamic. [View Project]
Which plane from four designs flies the best [View Project]
Physics of airplanes including a brief history of flight. [View Project]
Investigate the history and physical properties of the Spruce Goose [View Project]
How an FM radio works? [View Project]
Which fruit or vegetable conducts electricity the best? [View Project]
Laws of repulsion and attraction of magnetic poles use in levitating trains [View Project]
How do loudspeakers work? [View Project]
How does electricity come to my house? [View Project]
Determine whether overcrowding affects fish growth. [View Project]
Research the Declination of Pacific Salmon in the Fraser River [View Project]
Find the balance of nature in an aquarium [View Project]
The Mountain Pine Beetle's Negative Impact on Pine Trees [View Project]
The Case of the Missing Marmots [View Project]
Overpopulation vs. Overconsumption [View Project]
Why Burns Bog is so hard to preserve? [View Project]
Simulate a tsunami. [View Project]
What are hurricanes? [View Project]
Determine what the strongest and weakest points of a hurricane are. [View Project]
Shrinking ice caps in the Arctic and how they might affect the world. [View Project]
Type of liquid (pH) and limestone erosion. [View Project]
Measure the slope angle at which different rocks slid one over another (landslide). [View Project]
Evaluate the effectiveness of various ice melting products [View Project]
Everything about arsenic [View Project]
Investigate natural poisons and venoms related to plants and animals. [View Project]
Find out if polyester or nylon is stronger for the construction of hot air balloons [View Project]
Which diaper company is better in absorbency? [View Project]
Find out which liquid evaporates the fastest. [View Project]
Research gasoline and Diesel engines. [View Project]
The Oil Industry [View Project]
The effects of different chemicals on the color of different fabrics [View Project]
The dependence of current on the concentration of sodium chloride in the electrolyte [View Project]
Is there any difference between white egg shells and brown? [View Project]
The effect of moisture on crystal growth [View Project]
Discover if sugar crystals grow bigger in a certain type of liquid [View Project]
Make your own stalactite [View Project]
Find out how sterile a doctor's office really is. [View Project]
Which carpet cleaner will remove tough stains the best? [View Project]
Which stain remover removes stains the best? [View Project]
Effectiveness of Non-Alcohol Versus Alcohol-Based Hand Sanitizer [View Project]
Measure air pressure by using chemicals and corked bottles [View Project]
Which substance will burn the fastest? [View Project]
Make your own cabbage juice pH indicator [View Project]
Record the acidity (pH level) of different fruit juices. [View Project]
What affects mild steel more, acids (vinegar) or bases (ammonia)? [View Project]
What are cells (biology)? [View Project]
Can DNA be extracted from onions and observed with the naked eye? [View Project]
The effect of gravity on plant growth (tropism) [View Project]
How do different concentrations of salt water affect plants? [View Project]
The effect of light on seed germination [View Project]
Exploring the relationship (pollination) between Lesser Dawn Bats and durian fruit [View Project]
Will roots: hold soil together, always grow towards water, always point down? [View Project]
Is there a way to prolong the life of fresh cut flowers? [View Project]
What happens when a plant population is too dense? [View Project]
On what fruits will penicillium mold grow? [View Project]
Do different kinds of bread mold at different speeds? [View Project]
Find out if lemon acid can kill plants. [View Project]
Why is The Sun Hot? [View Project]
Investigate the solar system. [View Project]
Are solar flares harmful to your health? [View Project]
Black holes and time [View Project]
Research stars birth, life, and death. [View Project]
Explore the sun, stars, black holes and supernovas [View Project]
What are Cosmic Rays? [View Project]
Investigate constellations and some of the myths behind them. [View Project]
Demonstrate what happens when a meteor hits the earth and becomes a meteorite. [View Project]
Make an alien that can survive on the planet Mercury. [View Project]
Creating an alien that can survive on the planet Mars. [View Project]
Research the physical traits of Pluto and design an alien that can survive on this planet. [View Project]
What is Terraforming? [View Project]

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Last updated: June 2013
Copyright © 2003-2013 Julian Rubin