Matter & Chemical Reactions
Energy
Cells & Life Processes
Ecosystems & Food Relationships
Organisms, Adaptations & Interactions
100

This is a substance that consists of only one type of atom.

What is an element?

100

This is energy due to motion.

What is kinetic energy?

100

This is the smallest unit of life.

What is a cell?

100

This includes all living and nonliving things in a given area.

What is an ecosystem?

100

This is a trait or behavior that helps a living thing survive and reproduce.

What is an adaptation?

200

This is the amount of matter in an object.

What is mass?

200

This is stored energy due to interactions between objects or particles.

What is potential energy?

200

This is a living thing made of only one cell.

What is a unicellular organism?

200

This is all the organisms of the same species living in the same area at the same time.

What is a population?

200

This is the variety of living things in an area.

What is biodiversity?

300

This is a starting substance in a chemical reaction.

What is a reactant?

300

This is energy stored in stretched or compressed objects, like springs or rubber bands.

What is elastic potential energy?

300

This flexible covering protects the inside of a cell from the outside environment.

What is the cell membrane?

300

This is a factor that can limit the growth of a population.

What is a limiting factor?

300

This is a close, long-term relationship between two species.

What is symbiosis?

400

This law says the total mass before a chemical reaction equals the total mass after the reaction.

What is the law of conservation of mass?

400

This is the transfer of energy to an object by a force that makes it move in the direction of the force.

What is work?

400

This organelle directs cell activity and contains DNA.

What is the nucleus?

400

This is an organism that cannot make its own food and gets energy by eating other organisms.

What is a consumer?

400

This symbiotic relationship benefits both organisms.

What is mutualism?

500

This type of reaction requires more energy to break bonds than is released when products form.

What is an endothermic reaction?

500

This law says energy is transferred, but it is not created or destroyed.

What is the law of conservation of energy?

500

This organelle uses light energy to make glucose from water and carbon dioxide.

What is a chloroplast?

500

This model shows the amount of energy available at each link of a food chain.

What is an energy pyramid?

500

This symbiotic relationship benefits one organism while the other is harmed.

What is parasitism?

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