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Science Questions

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Total questions: 69924

How do electromagnets work?
Popularity: 308

What is the difference in weight between a gallon of water and a gallon of gasoline?
Popularity: 270

How much does sea water weigh per cubic foot?
Popularity: 234

Why is the sky blue?
Popularity: 223 | New Update

What makes stain removers work?
Popularity: 222

What effect does music have on heartrate?
Popularity: 218

What is the difference between a test tube baby and cloning?
Popularity: 215

What safety rules should be followed in a science laboratory?
Popularity: 213

Why does bottled water have an expiration date?
Popularity: 205

Why are the rear tires of a tractor bigger than the front tires?
Popularity: 201

What would happen if there was no electricity?
Popularity: 195

What is the best microscope to buy for home or personal use?
Popularity: 194

Do the sun's tanning rays penetrate water and to what degree?
Popularity: 188

What causes the popping or tinkling sounds you hear as hot metal pipes cool off and contract?
Popularity: 188

What is the first and last step in the scientific method?
Popularity: 180

How is a wooden ship inside a glass bottle made?
Popularity: 177

How many gallons are in a cubic gallon?
Popularity: 177

Are there any ways to pass through a laser sensor undetected?
Popularity: 175

Which two mountain ranges are responsible for taking most of the moisture along the west coast of the US?
Popularity: 174

If you buy a microscope for the home what level of detail would one be able to see?
Popularity: 174

How does Nikola Tesla's anti-gravity machine work?
Popularity: 171

What ingredients are in stain removers?
Popularity: 163

What are the uses of roselite?
Popularity: 163

Who or what is Shenai-Khatkhate?
Popularity: 161

What are clouds made of?
Popularity: 158

Where can you get a diagram for a metric stick?
Popularity: 158

What are the pros and cons of natural gas?
Popularity: 157

If you fly in a plane from New York to India is the distance flown less than flying from India to New York based on the rotation of the earth?
Popularity: 155

Why are the oceans salty?
Popularity: 147

Who is the greatest scientist in the world?
Popularity: 147

What is the average teenage IQ?
Popularity: 145

How can you make your own car wax polish?
Popularity: 145

What is total charge?
Popularity: 140

What are test tube babies?
Popularity: 138

What experiments did Gregor Mendel conduct and what did he find out?
Popularity: 136

How do you create a carbon atom cycle story?
Popularity: 136

If lightning hits a body of water will there be a splash?
Popularity: 134

What is the family background of Gregor Mendel?
Popularity: 133

How many pounds does one gallon of water weigh?
Popularity: 132

Is test tube cloning accepted by our society?
Popularity: 132

Can you see static electricity?
Popularity: 129

Why does the Watershed need to be enforced?
Popularity: 129

How do you get rid of all bubbles in clean water?
Popularity: 128

If one gallon of water weights 8.34 lbs would adding a 2 lb fish to the water change the weight of the water?
Popularity: 128

Where do they make the 3D IMAX movies?
Popularity: 128

What are the general principles of agroforestry?
Popularity: 127

How does light travel through a camera?
Popularity: 127

How do different types of music such as heavy metal rap or country affect a person's behavior?
Popularity: 125

Where do they make fuel cells?
Popularity: 125

Why will a string vest with a shirt over it keep you as warm as a jumper?
Popularity: 125

How many bicycles are there in the world?
Popularity: 124

What is the effect of sodium hydroxide on the action of pepsinogen?
Popularity: 122

How much does a gallon of ice weigh?
Popularity: 121

What are 'primary' inequalities?
Popularity: 120

Why do men have nipples?
Popularity: 119

How can you tell if a young heifer is pregnant?
Popularity: 118

What is the mathmatical formula for calculating volume?
Popularity: 117

Does the type of ball affect how well it spins in water?
Popularity: 117

How could you calculate the evaporation rate in a farm based on the humidity and temperature?
Popularity: 113

Why is skin designated an organ?
Popularity: 113

What is the scientific attitude and what attitudes and characteristics define a good scientist?
Popularity: 112

What is a gene?
Popularity: 112

What is the shortest muscle in the human body?
Popularity: 112

Why do objects appear the color they are?
Popularity: 112

How come when you stand on your head it starts to throb but when you stand on your feet they don't?
Popularity: 111

Are fuel cells dangerous to make or dipose of?
Popularity: 111

How many gallons in a barrel of oil?
Popularity: 108

Why do cows face the same direction?
Popularity: 106

How do electronics work?
Popularity: 105

What are advantages and disadvantages of static electricity?
Popularity: 104



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