Science
Science
Science
Science
Science
100

True or False? Electrons are smaller than atoms.

True

100

Which is the most abundant element in the universe?

Hydrogen

100

What is the hardest natural substance on Earth?

Diamond

100

True or False? Lasers work by focusing on sound waves.

False

100

Do diamonds last forever?

No. Diamonds do not last forever. They’ll eventually degrade to graphite, though the process takes over a billion years.

200

True or False? Chameleons change colors only to blend into their environment.

False. Chameleons also change colors for other reasons, like to regulate body temperature, when feeling aggression, and when feeling excited.

200

What part of the human body serves the purpose of maintaining balance?

the ears

200

What are the four states of matter?

Solid, liquid, gas, plasma

200

Roughly how long does it take for the sun’s light to reach Earth: 8 minutes, 8 hours or 8 days?

8 minutes

200

Which blood type is the rarest in humans?

AB negative

300

What does a Geiger counter measure?

Radiation

300

What is a material that will not carry an electrical charge called?

Insulator

300

Bronze is an alloy made of which two elements?

Copper and tin 

300

At what temperature are Celsius and Fahrenheit equal?

-40

300

What is chalk made of?

It comes from limestone, which formed from the shells of tiny marine animals.

400

What’s the name of the protein in blood that carries oxygen?

Hemoglobin

400

How does fat leave your body when you lose weight?

Sweat, urine, breath

400

What’s the name of the theory that explains how the continents move across the Earth's surface?

Plate tectonics

400

A, C, and T, are three of the letters used to represent parts of DNA. What's the fourth one?

G

400

What is the name of the type of chemical bond formed by the sharing of electrons between atoms?

Covalent Bond

500

Which type of cloud is associated with thunderstorms?

Cumulonimbus

500

How many bones are in a giraffe’s neck?

seven

500

What’s the name of the process by which cells divide to create identical cells?

Mitosis
500

What’s the largest artery in the human body?

aorta

500

What was the name of the first man-made satellite launched by the Soviet Union in 1957?

Sputnik 1