Interactions and Ecosystems
Plants for food and fibre
Heat and Temperature
Planet Earth
Structures and forces
100

These are the living parts of an ecosystem.

What are biotic factors?

100

The process by which a seed begins to grow.

What is geermination?

100

This measures the average kinetic energy of particles.

What is temperature?

100

This is Earth's outermost layer.

What is the crust?

100

A structure designed mainly to support weight through its own mass.

What is a mass structure?

200

An organism that breaks down dead plants and animals.

What is a decomposer? 

200

Plants use sunlight, water, and carbon dioxide to make food through this process.

What is photosynthesis?

200

Matter exists in these three common states.

What are solid, liquid, and gas?

200

These currents in the mantle help move tectonic plates.

What are convection currents?

200

The force that stretches materials apart.

What is tension?

300

The stage of the water cycle when water vapor turns into liquid water.

What is condensation?

300

These plant structures absorb water and minerals from the soil.

What are roots?

300

Heat transfer through direct contact is called this.

What is conduction?

300

At this plate boundary, plates move apart.

What is a divergent boundary?

300

Loads that change depending on how a structure is used are called these.

What are live loads?

400

This type of succession occurs after a forest fire when soil is still present.

What is secondary succession? 

400

This type of pollination occurs when insects carry pollen from flower to flower.

What is insect pollination?

400

Materials that do not allow heat to move through them easily are called these.

What are insulators?

400

This type of rock forms when sediment is compacted and cemented together.

What is sedimentary rock?

400

Weight changes depending on gravity, but this stays the same everywhere.

What is mass?

500

This process causes harmful chemicals to increase in concentration as they move up a food chain.

What is biomagnification?

500

This environmental problem occurs when salts build up in soil due to irrigation.

What is soil salinization?

500

Diffusion happens faster in this type of water because particles move more quickly.

What is warm water?

500

Geologists use this instrument to detect and record earthquakes.

What is a seismograph?

500

Concrete reinforced with steel is an example of this type of material.

What is a composite material?