Science

• What substance is removed from the air by living things for respiration?

  oxygen
• What are all substances made of?

  atoms
• In what table are all the elements show

  Periodic
• What is the overall charge on an atom

  0
• Would you expect lithium and potassium to have similar properties?

  Yes
• What is the relative mass of a neutron?

  1
• Which has a greater mass a proton or a neutron?

  proton
• Voltage is another name for the _________ difference

  Potential
• True or false? Potential difference is measured in joules?

  False
• Should an ammeter be connected in series or parallel

  Series
• What sugar is formed in photosynthesis

  Glucose
• What gives energy to a plant

  Light
• What gas is needed for photosynthesis

  Carbon dioxide
• What gas is produced as a waste during photosynthesis

  Oxygen
• What name is given to a factor that prevents an increase in photosynthesis

  Limiting factor
• What product from photosynthesis is used to make cellulose

  glucose
• Which part of the plant absorbes water?

  Roothair cell
• Which is not a metal : zinc, iron, aluminium, sulfur, copper or gold

  Sulfur
• The number of protons is always equal to what

  Electron
• Mendeleev arranged the elements in order of increasing atomic ____

  Mass
• Do metals occupy left or right on the periodic table?

  Left
• Is carbon dioxide a element

  No
• What are elements that can react to form positive ions called

  Metals
• Where is most of the mass in a atom

  Nucleus
• What are found in a atoms nucleus

  Proton and neutron
• Where are electrons found in the atom

  Shell
• Do electrons have a positive, negative or no charge?


  Negative
• What subatomic particle has no charge?

  Neutron