Unit A: Interactions & Ecosystems
These are the living parts of an ecosystem.
What are biotic factors?
This gas is needed by plants to make food.
What is carbon dioxide (CO2)?
This type of heat transfer happens through direct contact.
What is conduction?
A rope being pulled tight is under this force.
What is tension?
This process breaks rock into smaller pieces.
What is weathering?
These organisms make their own food using sunlight.
What are producers?
This plant tissue carries water upward from the roots.
What is xylem?
Particles in this state of matter are closest together.
What is a solid?
A wide base and lower centre of gravity makes a structure more...
What is stable?
Wind, water, and ice move rock pieces in this process.
What is erosion?
This is an interconnected network of food chains within an ecosystem.
What is a food web?
Reproduction using cuttings or runners is this type.
What is asexual reproduction?
Thermometers work because liquids inside them do this when heated.
What is expand?
Concrete is strong under this force but weak under tension.
What is compression?
Fossils are most often found in this type of rock.
What is sedimentary rock?
A polar bear's thick fur and a hare changing colour with the season, is an example of what?
What is adaptation?
This process involves choosing plants with the best traits to grow new ones.
What is selective breeding?
These type of materials slow the transfer of heat.
What are insulators?
This type of bridge uses cables and tension to support itself.
What is a suspension bridge?
This is the plate boundary when tectonic plates move away from one another.
What is a divergent boundary?
This is a group of organisms of the same species.
What is a population?
Cotton and flax are examples of plants grown for this purpose.
What is fibre?
This is the total energy of all moving particles in a substance.
What is thermal energy?
Engineers use this shape to strengthen bridges and towers.
What is a triangle?
This cycle allows rocks to change into other types over time.
What is the rock cycle?