Biology
Chemistry
Space
100

Cytokinesis

When the cell splits

100

A particle that has about the same mass as proton

Neutron

100

How many moons does Mars have?

2

200

Mutagen

What causes mutations

200

The total number of protons and neutrons in the nucleus.

Mass number

200

What is the closest planet to the Sun?

Mercury

300

A fur color different from normal is an example of...

Neutral mutation
300

Iron(III) oxide

Fe2O3

300

How long does it take for light to travel from Sun to Earth?

About 8 minutes
400

New technique for treating gene mutations

Gene therapy

400

LiNO2

Lithium nitrite

400

Pluto-Charon system

Double planet

500

Ecosystem stability increases with...

Genetic diversity

500

How many valence electrons does xenon have?

8

500

What happens when Earth is in between Sun and Moon?

Moon eclipse