year 7 science - Autumn term 1.1

Cell

The unit of a living organism, contains parts to carry our life processes.

Diffusion

One way for substances to move in and out of cells

Resolution

The minimum distance between 2 distinct points of a specimen where they can still be seen by the observer or microscope camera as separate entities

Speed

How much distance is covered in how much time

Distance time graph

Shows distance travelled measured by time.

Muscular skeletal system

Muscles and bones working together to cause movement and support the body

Acceleration

How quickly speed increases or decreases

Particle model

A scientific model that explains the properties of solids, liquids and gasses by representing matter as tiny, solid, inelastic spheres

Variable

A variable is anything that can be changed and be measured

Immune system

Protects the body against infections