Physics
Chemistry
Biology
Astronomy
Earth Science
100

Isaac Newton's third law of motion.

What is every action has an equal and opposite reaction? 

100
The number of elements that are present in the current periodic table.

What is 118?

100

The number of chromosome pairs in the human body.

What is 23?

100

Venus is the ______ planet from the sun. 

What is second?

100

Define erosion.

What is the gradual destruction of something by natural causes? 

200

Isaac Newton's second law of motion.

What is f/ma?

200

The main reason why noble gasses are so unreactive.

What is they have a complete outermost shell?

200

The chromosome # that one gains an extra copy of if they have down syndrome.

What is #21?

200

The temperature of the surface of the sun. (In Fahrenheit)

What is about 10,000 F?

200

Define deposition. 

What is the process in which sediments are added to a landform?

300

The way waves transfer energy.

What is the particles bump into each other?

300

The chemical symbol for antimony.

What is Sb?

300

The pioneer in the development of the microscope.

Who is Antoine Van Leeuwenhoek?
300

The circumference of the Earth. (In Miles)

What is about 25,000 mi?

300

The reason why a delta often forms where a river empties into an ocean.

What is when river water is no longer flowing downhill, the water slows down, causing the deposition of sediment. 

400

The difference between electromagnetism and magnetism.

What is electromagnetism is in the form of waves?

400

What the octet rule states.

What is electrons are lost/shared/given until the compound reaches 8 valence electrons?

400
The steps of mitosis in order of first to last.

What is interphase, prophase, metaphase, anaphase, telophase, and cytokinesis?

400

The gravity difference between the earth and the moon.

What is the moon's gravity is 1/6th as powerful as earth's?

400

The most common element in earth's crust.

What is oxygen?

500

The number of orbitals in a standard atom.

What is 4?

500

The person who discovered lithium.

Who is Johan August Arfwedson?

500

The person who developed/proposed binomial nomenclature. 

Who is Carl Linnaeus?

500
The amount of times a neutron star spins in a minute.

What is 43,000?

500

The process of glacial deposition.

What is the setting of sediments from a moving glacier?