Life Science
First/Second Grade Ideas
- What is the best way to keep cut flowers fresh the longest?
- Can plants grow in pots if they are sideways or upside-down?
- What type of food allow mold to grow the fastest?
- What type of soil is the best for growing beans?
- What is the best way to ripen an avocado?
- Can plants grow without sunlight?
- What attracts fruit flies?
- Why do greens turn brown? (i.e. salad)
- How do smells affect cricket behavior?
- Can you make a mummy out of a hot dog?
- Does storing cucumbers and tomatoes in the fridge affect their flavor?
- Does placing a boiled egg in the fridge make it easier to peel?
- Does hair color affect static electricity?
- How does exercise change body temperature?
Third/Fourth Grade Ideas
- Does music have an affect on animal behavior?
- Does music have an affect on plant growth?
- Does age affect human reaction times?
- Does the color of birdseed affect how much the birds will eat it?
- How does smell affect taste?
- How do different pencils affect writing fatigue?
- What is the best way to reduce odor from shoes?
- How do you store bread safely?
- What type of bean germinates fastest?
- Does a dog prefer homemade dog food?
- What is the effect of caffeine on heart rate?
- How do seeds hitchhike?
- Does a microwave effect the seeds germination?
- Which parent affects fingerprint patterns more?
- Do students perform better if they eat breakfast?
- Can you tell the difference between various soft drinks without using your sense of smell?
- How can I prove that some foods contain more fat than others?
- Do boys and girls have the same lung capacity?
- Are most people visual or auditory learners?
- How many numbers can most people remember?
Earth Science
First/Second Grade Ideas
- What type of soil can hold the most liquid?
- Why doesn't sea water freeze like fresh water?
- What type of sand makes the best sandcastle?
- What factors grow the best sugar crystals?
- How are clouds formed?
- What can be done with all that trash?
- Can rocks can float?
- Can you make energy from garbage?
- Why does the moon glow?
- Does air have mass or weight?
- How can you prevent rust from forming?
- How does moisture affect the color of soil?
Third/Fourth Grade Ideas
- What can you do to stop erosion? What is erosion?
- How do fins on a rocket affect its flight?
- What conditions produce craters?
- How does frost form?
- What does a barometer do? Make your own barometer.
- How do you make your own fossil?
- What causes a tsunami?
- What affects evaporation the most? air temp, water temp, or wind speed?
- What are some environmental effects of biodegradable and non-biodegradable bags?
- What causes a mirage?
- How can you make safe drinking water?
- Which soil do earthworms like best?
- Are igneous, sedimentary, or metamorphic rocks most damaged by freezing?
- How can we tell time without a clock?
Physical Science
First/Second Grade Ideas
- What solution is the best for bubbles and why?
- What type of paper makes the best paper airplane?
- Why should I use a ramp? or other simple machine?
- Which paper towel brand is the strongest? Most absorbent?
- What happens when you heat sugar?
- How do you make your car go faster?
- Do different types of oil mix or stack?
- How many times can you fold a piece of paper on itself?
- Does hot water boil faster than cold water?
- What type of cup prevents ice from melting?
- Do some liquids expand more than others when frozen?
- How does dishwashing liquid clean away oil?
- Which liquid is more dense - honey, water, or oil?
Third/Fourth Grade Ideas
- What brand of batteries last the longest?
- Does the color of hair affect how much static electricity it can carry?
- What brands of bubble gum produce the biggest bubbles?
- What type of ball bounces the highest?
- What is the best way to keep an ice cube from melting?
- What type of microwave popcorn pops the best?
- Are eco-friendly packing materials as effective as less eco-friendly materials in protecting a breakable item?
- How does a parachute work?
- How to make a potato battery? lemon? etc.?
- What makes the best super ball?
- Does adding salt to pasta make it cook faster?
- What soaps foam in the microwave? Why?
- Why does salt melt ice?
- What is the fastest way to cool a can of soda?
- Does mint actually cool things down?
- Can Jell-O be made with just warm water instead of hot water?
- Does the temperature of rubber affect how high it can bounce?
- What kind of bubble wrap provides the most protection?
- Does the size of a parachute affect the rate than an object will fall?
- How well does sound travel through a gas, a liquid, and a solid?
- Does the volume of play dough in a container change after you have played with it?
- What is the probability of pulling out your favorite color when you reach into a bag of M&Ms?
- Can coin flip probability be altered by the individual flipping the coin?
- Does gelatin slow down the melting point of freezer pops?
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