Ecosystems 8
Earth 8
Electromagnets 8
Reactions 8
Waves 8
100

The process of getting energy from food

Respiration

100

The layer of gas that traps heat around the earth

The greenhouse layer

100

The three magnetic metals

Iron, nickel, cobalt

100

The mass of oxygen that reacts when 2.4g of magnesium forms 4g of magnesium oxide

1.6g

100

Two things waves can transfer

Energy Information

200

The process of making glucose from carbon dioxide and water using sunlight

Photosynthesis

200

The process how dead remains put carbon dioxide into the atmosphere

decay

200

The type of magnetic pole under the Earth's North pole

S (south)

200

a substance made of only one type of atom

element

200

The wave type where the vibration is across the direction of wave motion

Transverse

300

Respiration without oxygen

Anaerobic

300

The energy resource that includes coal, oil and gas

fossil fuels

300

The area in which a magnet exerts an influence

Magnetic field

300

The scientific name for burning

combustion

300

The height of the wave, equivalent to the loudness of a sound or the brightness of a light

amplitude

400

Respiration with oxygen

Aerobic

400

A rock with a useful metal or mineral in it

ore

400

A coil of wire which has a magnetic field because it is carrying an electric current

solenoid

400

a substance breaking down with heat

thermal decomposition

400

The number of waves passing per second

Frequency

500

Using fermentation by microbes to make useful products

Biotechnology

500

The process of getting a metal from a metal oxide by heating it with carbon

smelting OR reduction

500

The metal core in an electromagnet

soft iron

500

A reaction that gives out heat

Exothermic

500

The distance between two peaks of a wave

wavelength

M
e
n
u