CHS Year 7 Progress test 2

What is a thermometer used for?

• To find the temperature

• To measure weight

• To calculate speed

• To determine volume

What does the term "hazard" mean?

• Something that could be dangerous

• A tool used for measurement

• A type of scientific graph

• A method of calculation

What is the range in a set of data?

• Biggest value minus smallest value

• Sum of all values

• Average of all values

• Smallest value plus largest value

What is the dependent variable in an experiment?

• The variable you measure

• The variable you change

• The variable you keep the same

• The variable you ignore

What happens to particles during the change of state from solid to liquid?

• They gain energy

• They lose energy

• They stay the same

• They disappear

What is the dependent variable in an experiment?

• The variable you measure

• The variable you change

• The variable you keep the same

• The variable you ignore

How are particles arranged in solids?

• In a regular pattern

• Randomly scattered

• In a straight line

• In a circular pattern

What is the total magnification of a microscope if the objective lens is x20 and the eyepiece lens is x5

• x1000

• x4

• x25

• x100

Why do we use a pencil line in chromatography experiments?

• pencils are cheaper to use than pens

• a pen might be the same colour as the ink used

• pencil does not dissolve

• pencil is easier to see

What causes gas pressure in a container?

• Gas particles colliding with the walls

• Gas particles moving away from the walls

• Gas particles staying still

• Gas particles disappearing