Science Checkpoint Revision

Changes of state are reversible changes.

• True

• False

Which metal is NOT magnetic?

• zinc

• iron

• steel

What stage of a flowering plant's life cycle comes before germination?

• pollination

• seed dispersal

• fertilisation

• growth

The Earth completes one orbit around the sun every...

• 24 hours

• 365 days

• 28 days

• 60 seconds

Which scientific enquiry method is used when we keep all variables the same in an experiment and change just one thing?

• pattern seeking

• observing over time

• research

• fair testing

Joe conducts an experiment to see how the amount of water affects the number of seeds that germinate. What is the independent variable in this investigation?

• the number of seeds that germinate

• the amount of water

• the amount of seeds that DO not germinate

• the amount of soil the seeds are planted in

What state of matter is represented by this particle model?

• Solid

• Liquid

• Gas

• Plasma

Flutes, recorders, and other wind instruments produce a sound because the column of air inside it vibrates. The longer the column of air, the ...

• louder the volume

• the quieter the volume

• the higher the pitch

• the lower the pitch

This book is on a table. It is not moving. What two forces are acting on it? (Select one)

• friction

• applied force

• normal force

• gravity

What two parts of a flower make up the stamen?

• anther and filament

• filament and carpel

• stigma and style

• sepals and petals