Show:
Water
Chemistry
Cells & Microbiology
Evolution
Mixed
100
An organism that obtains its nutrition and energy by eating other organisms.
What is a consumer.
100
The smallest unit of an element that is has all the properties of an element.
What is an atom.
100
Medicines used to kill or slow the growth of bacteria.
What are antibiotics.
100
The shaking of Earth's surface that occurs when energy stored as pressure in rocks is released quickly.
What is an earthquake.
100
The tendency for water molecules to stick to other water molecules.
What is cohesion.
200
A measure of the mass of a substance per unit volume.
What is density.
200
A particle that has a negative charge and orbits the nucleus of an atom.
What is an electron.
200
A group of diseases caused by abnormal cell growth and production.
What is cancer.
200
A trait or structure that improves an organism's chance for survival.
What is an adaptation.
200
The amount of a substance in a given volume.
What is concentration.
300
A rock layer that stores water and allows water to flow through it.
What is an aquifer.
300
A substance that cannot be broken down into a simpler substance by ordinary chemical means.
What is an element.
300
The structure that surrounds a cell, providing a barrier between the inside of the cell and the cell's external environment.
What is the cell membrane.
300
The process by which the continents split apart from a single landmass and continue to move apart.
What is continental drift.
300
A disease that can be spread from one person to another.
What is contagious.
400
The tendency for water to stick to other substances.
What is adhesion
400
A bond formed when two atoms share electrons.
What is covalent bond.
400
The process by which animals release energy from food, and in which humans give off CO2.
What is respiration.
400
A procedure designed to test a hypothesis **Not related to evolution**
What is an experiment.
400
A statement that explains the observations or the relationship between the variables; an explanation of what the results show.
What is a conclusion.
500
An area where salty ocean water mixes with fresh water from rivers.
What is an estuary.
500
A characteristic that describes how the matter will change under certain conditions.
What is a chemical property.
500
A chemical substance made by the body to help destroy an invading pathogen.
What is an antibody
500
The process of change over time.
What is evolution.
500
The green pigment that captures the energy of the Sun to drive the process of photosynthesis.
What is chlorophyll.