PRACTICE FOR PEARSON TRIAL SCI9

Subatomic particle with negative charge is

• Proton

• Electron

• Neutron

Which particle has a positive electrical charge?

• proton

• neutron

• electron

Which particles make up the nucleus of an atom? (you can choose more than one answers)

• proton

• electron

• neutron

Light is an example of a resource that plants compete for in order to survive. Give one other resource that plants compete for in order to survive.

examples: space, minerals, nutrients and _____

What are the units for work done?

What are the units of force?

Which gas is produced during photosynthesis?

Which gas is used in the reactants during photosynthesis?

What gas is the most abundant in earth's atmosphere?

Symbol H means