CHS Year 8 Progress test 1

A student collects data on the relationship between height and weight in their class. What type of graph should they draw?

• bar

• line

• pie

• box and whisker plot

How do you get a safety flame when using a Bunsen burner

• turning up the gas

• turning down the gas

• opening the air hole by turning the collar

• closing the air hole by turning the collar

A student investigates how the temperature of water affects how fast a sugar lump dissolves in a cup of tea. What is the control variable for this investigation? Mark all that apply

• the mass of the sugar lump

• how fast the sugar lump dissolves

• the temperature of the tea

• the volume of tea used

Which state of matter is when the particles vibrate around a fixed position?

• gas

• liquid

• solid

• air

What is the process called when a liquid changes into a gas?

• condensation

• evaporation

• freezing

• melting

What is the function of the cytoplasm?

• controls all cell activities

• the place where chemical reactions take place

• makes protein

• releases energy in aerobic respiration

How do you change the magnification on a microscope?

• make the light brighter

• move the stage up or down

• use the focus wheel

• change the objective len

What is the correct equation used to calculate speed?

• speed = time x mass

• time = speed / distance

• speed = distance / time

• speed = distance x time

What does a plateau (flat bit) on a distance time graph mean?

• the object is stationary

• the object is moving at a slow speed

• the object is moving at a fast speed

• the object is accelerating

If the forces on an object are balanced then the object will

• stay still

• accelerate

• travel at a steady speed

• slow down