Lisnagarvey High School

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Year 9

LAC WORDS – SCIENCE – YEAR 9

Populations

Adaptation – a change in an animal or plant.

Characteristic – a feature.

Predator – an animal that hunts & eats other animals.

Population – group of plants/animals of the same species.

Using Forces

Resultant – the sum of the forces

Accelerating – getting faster

Decelerating – slowing down

Elements

Element – simplest chemical substance with only one type of atom

Compound – 2 or more elements joined together chemically

Molecule – 2 or more atoms joined together

Reactivity – how reactive something is

Earth & Space

Eclipse – when the moon passes between the sun and the earth

Orbit – path of a planet around the sun

Solar system – the sun plus the nine planets

Astronaut – person that travels to space

Food & Digestion

Carbohydrates – foods containing sugar or starch

Digestion – the breakdown of food into soluble substances

Enzymes – chemicals that help to break down food

Intestines – tube-like part of the digestive system

Staying Alive

Oxygen – the gas we need to stay alive

Carbon dioxide – the gas we breathe out

Diaphragm – flat muscle below lungs that helps us breathe in & out

Capillaries – tiny blood vessels

Haemoglobin – protein in red blood cells that carries oxygen

Sight & Sound

Refraction – bending light

Reflection – light bouncing back from a shiny surface

Vibrate – fast movement backwards & forwards

Frequency – how often

Hertz – the unit used to measure the frequency of sound waves

Chemical reactions

Calcium carbonate – chemical name for limestone

Combustion – burning

Galvanise – method of rust prevention

Plants

Photosynthesis – plants making food from light

Chlorophyll – green chemical in leaves that traps light

Variegated – leaves that are green & white

Xylem – tubes that carry water (& nutrients) from roots to leaf

Phloem – tubes that carry sugar from leaf to rest of plant

KS3 LAC Words

Year 8

Year 9

Year 10