Health/Medicine
Periodic Table
Biology
Astronomy
Earth Science
100

This vitamin is produced when one spends time in the sun?

What is "Vitaman D"?

100

This number tells you the number of protons and electrons.

What is an atomic number?

100

Sunlight, water, and CO2 are used to make this substance in a plant.

What is glucose?

100

These are dark areas on the Sun’s surface.

What are sunspots?

100

This element is investigated to determine how old rocks and fossils are.

What is carbon?

200

This allows blood vessels to flow to/from the heart.

What is a vein?

200

These subatomic particles have a positive, neutral, and negative charge, in that order.

What is a proton, neutron, and electron?

200

Photosynthesis occurs in this organelle in a plant cell.

What is a chloroplast?

200

This giant mechanism orbits the Earth and can see things and places very far away in space. It also takes pictures which are sent back to Earth for scientists to research. 

What is the Hubble Space Telescope? (JWST works too)

200

These are the three main types of rock. 

What are sedimentary, igneous, and metamorphic?

300

This type of exercise does not rely on oxygen.

What is anaerobic?

300

This element has the symbol Xe.

What is Xenon?

300

This mineral is known for being responsible for muscular contraction.

What is calcium?

300

This is a large rotating cloud of dust and hydrogen gas in space.

What is a nebula?

300

This is about how many years ago the earth formed. 

What is 4.5 million years?

400

This is the ideal/normal blood pressure.

What is 120/80?

400

There are this many liquids on the periodic table (at room temperature).

2

400

This state is characterized by an organism being “happy” with its environment. 

What is "homeostasis"?

400

This is a chunk of matter that enters our atmosphere and is heated by friction with the air to the point of burning up as it falls towards the Earth. 

What is a meteor?

400

This scale is used to measure the severity of an earthquake. 

What is the Richter scale?

500

When the heart is contracted, the blood pressure measurement is called this.

What is "systolic"?

500

This model depicts the electrons of an atom spinning around the nucleus that it looks like a cloud.

What is the electron cloud model?

500

This is the sum of all processes that occur within an organism?

What is a metabolism?

500

This is a small, orbiting body made up of dust, ice, and frozen gases. The solid center of this is its nucleus, and like all objects in the solar system it orbits the sun.

What is a comet?

500

This is the location where freshwater from rivers and streams meet saltwater from the ocean.

What is an estuary?