Ecosystems
Physics
Biology
Chemistry
Random
100

This term describes the role or “job” an organism plays in its environment, including how it gets food.

Niche

100

The bending of light as it passes from one medium to another is called

Refraction

100

What is the basic structural and functional unit of life?

A cell

100

This is the smallest unit of matter that retains the properties of an element?

Atom

100

Name the two gasses we breathe in and out.

O(oxygen) and CO(carbon dioxide)

200

This level of a food chain contains organisms that convert sunlight into chemical energy.

Producers (or autotrophs)

200

The product of an object’s mass and velocity is known as this vector quantity.

Momentum

200

Plants use photosynthesis to make food. They take in this gas and release oxygen 

What gas is it?

Carbon Dioxide

200

This subatomic particle carries a positive charge

Proton

200

This is the term for the exploding death of massive stars.

Supernova

300

This process describes how nutrients cycle between living organisms and the environment, such as carbon or nitrogen.

biogeochemical cycling

300

Newton’s Third Law of Motion is? 

Every action has an equal and opposite reaction.

300

Organelle in the cytoplasm of eukaryotic cells containing degradative enzymes

Lysosome

300

This quantity describes the number of particles in one mole

Avogadro’s number Neutral

300

This metal is liquid at room temperature and can dissolve gold, which is why it was used historically for alchemy.

Mercury

400

This type of symbiotic relationship benefits one organism while the other is unaffected, such as barnacles on whales.

Commensalism

400

This phenomenon occurs when a wave changes frequency because the source or observer is moving

Doppler effect

400

Humans maintain a stable internal environment through this process.

Homeostasis

400

This law states that mass cannot be created or destroyed in a chemical reaction.

Law of Conservation of Mass

400

What is the process by which plants convert light energy to food?

Photosynthesis

500

This ecological concept states that no two species can occupy the exact same niche in the same habitat for long, due to competition.

Competitive exclusion

500

This principle states that you cannot simultaneously know exact momentum and position of a particle. This phenomenon occurs when a wave changes frequency because the source or observer is moving

Heisenberg’s Uncertainty Principle

500

How does osmosis work?

The movement of water molecules across a semipermeable membrane from an area of lower solute concentration (higher water concentration) to an area of higher solute concentration (lower water concentration).

500

This thermochemical term describes the energy required to remove 1 mole of electrons from 1 mole of gaseous atoms. 

first ionization energy

500

What creature has 32 brains, one in each of its body segments

Leech