Science

• What is the name of the apparatus used to measure liquids volume?

  Measuring cylinder
• What does a thermometer measure?

  Temperature
• What are the units used for measuring liquid volume?

  ml
• What are the units used for measuring temperature?

  degrees celcius
• What is the function of a Bunsen burner in a laboratory setting?

  To provide a flame for heating substances
• How would you represent the total number of chocolate bars sold each day in a graph?

  • Use a bar graph
  • Label the x-axis with days (Monday, Tuesday, Wednesday, Thursday)
  • Label the y-axis with the number of bars sold
  • Plot the total number of bars sold for each day
• What energy transfer occurs when lighting a bonfire?

  • Chemical energy in the wood is converted to heat energy.
• What energy transfer occurs when clapping your hands?

  • Chemical energy in the body is converted to sound and kinetic energy.
• Why does the Digestive biscuit have more energy than the Custard Cream?

  The difference in the water temperature before and after is bigger than that of Custard Creams
• What is the independent variable in the biscuit energy experiment?

  Type of biscuit
• What is the dependent variable in the biscuit energy experiment?

  Change in temperature of water
• What is one controlled variable that should be kept the same in the biscuit energy experiment?

  Volume of water
• How could the biscuit energy investigation be made more reliable?

  By repeating the experiment more than once
• What is the apparatus used to measure current in a circuit?

  Ammeter
• What are the units used to measure current?

  Amps (A)
• What is the resultant force when 10N and 30N are acting in the same direction?

  40N
• What is the resultant force when 200N and 300N are acting in the same direction?

  500N
• What are the characteristics of living organisms?

  • Movement
  • Reproduction
  • Sensitivity
  • Growth
  • Respiration
  • Excretion
  • Nutrition
• What are the parts of a plant cell that need to be labeled?

  Cell wall, cell membrane, chloroplast, cytoplasm, nucleus, vacuole
• What is the function of the cytoplasm in a cell?

  Chemical reactions take place in the cytoplasm
• What is the role of the cell membrane?

  It allows certain things like vitamins and minerals to enter the cell
• What parts of the microscope did Jayden and Joshua label?

  Eyepiece lens, focusing knob, stage, base
• What are the two specialized cells identified in the study material?

  Sperm cell and red blood cell
• What are the functions of different parts of the brain?

  • Cerebrum: The thinking part of the brain; controls voluntary muscles
  • Cerebellum: Controls balance, movement, and coordination
  • Hypothalamus: Controls the temperature of the body
  • Brain stem: Controls basic life functions
• What color is copper carbonate before heating?

  Green
• What color is the solid left in the test tube after heating copper carbonate?

  Black
• What is the symbol of the element in group 1, period 2?

  Li
• What is the symbol of the element in group 7, period 3?


  Cl
• What is one element that is a non-metal?

  Helium
• What are the properties of metals and non-metals?

  Metals:

  • Shiny
  • Hard
  • Magnetic
  • Good conductors

  
  

  Non-metals:

  • Dull
  • Soft
  • Poor conductors
• What are the changes of state for different phases of matter?

  • Melting: Solid to liquid
  • Boiling: Liquid to gas
  • Freezing: Liquid to solid
  • Condensing: Gas to liquid
• Match the famous scientists with their contributions.

  • Robert Bunsen: Invented a heating device for lab work
  • Dmitri Mendeleev: Designed the periodic table
  • Sir Isaac Newton: Discovered gravity
  • Stephanie Kwolek: Invented bullet-proof material Kevlar
  • Marie Curie: Discovered the element Radium
• What are the types of energy changes listed in the study material?

  • Kinetic energy
  • Heat energy
  • Elastic energy
  • Sound energy
  • Chemical energy
  • Electrical energy
  • Gravitational potential energy
• Which three appliances are designed to change electrical energy into heat?

  Toaster, microwave oven, kettle
• Which appliance is designed to change electrical energy into sound?

  Radio
• Which appliance uses fuel to produce heat energy?

  Gas cooker
• What does the Law of Conservation of Energy state?


  • Energy cannot be created or destroyed
  • Energy can only change from one form to another
• What fuel does a car use to make it work and what type of energy does it contain?chemical energy
• What is the energy change diagram for a car?

  • Chemical energy (from fuel)
  • Kinetic energy (movement)
  • Heat energy (wasted energy)
• What is the wasted energy produced by a car?

  Heat