Organisms
Matter
Separating techniques
Electricity
Ecosystems
100

A group of similar cells working together for a function

Tissue

100

Dense, vibrate in a fixed position and cannot flow.

Solid

100

Sugar in water.

Soluble

100

charged particles called electrons flow around a circuit.

Electricity

100

The flow of energy through an ecosystem.

Food chain

200

A cell with a cell wall and no nucleus.

Bacteria

200

Change from a liquid to a solid.

Freezing

200

Has a mobile and stationary phase.

Chromatography

200

Measured in amps.

Current

200

The third organism along a food chain.

Secondary consumer

300

A system consisting of the heart and blood vessels.

Circulatory system

300

Movement of particles from an area of high concentration to low concentration.

Diffusion

300

physical methods used to separate mixtures.

Separating techniques

300

Measure this using a voltmeter.

Potential difference

300

The interaction between living organisms and the non-living environment in a place.

Ecosystem

400

Absorb minerals and water from the soil.

Root hair cell

400

Has a specific and sharp boiling point.

Pure substances

400

The temperature at which a substance turns from a liquid to gas (or gas to liquid).

Boiling point

400

components connected in one loop.

Series circuit

400

The build up in concentration of toxic materials in living organisms along a food chain.

Bioaccumulation

500

How much bigger an image is than the actual size of the object you are looking at.

Magnification

500

Examples include: iodine, dry ice, ink in printers.

Sublimation

500

Separating technique that is expensive as it uses a lot of energy.

Distillation

500

anything that slows down the current.

Resistance

500

A particular area within an ecosystem that a population lives.

Niche