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Starting Science
Matter and Materials
Matter and Materials
Energy
Energy
100
You need to wear safety glasses all the time during any prac. Ture or false?
True
100
Define "Evaporation".
Changing state from liquid to gas.
100
Define "Condensation".
Changing state from gas to liquid.
100
Give one example of kinetic energy.
Any example of kinetic energy
100
Give one example of gravitational potential energy.
Any example of gravitational potential energy
200
What does it mean if you have a chemical that labelled as "Corrosive".
The chemical can cause severe damage/ burn to skin and eyes.
200
What is the boiling point of water?
100 degree
200
Which one has more space between the particles? Gas or solid?
Gas
200
List 4 types of energy
Light energy, thermal energy, electrical energy, kinetic energy, potential energy....
200
Identify the type of energy: a spring has when it is stretched.
Elastic potential energy
300
How do you stay safe when you handle "Flammable" liquid?
Keep the liquid away from flames.
300
What is the process (changing state) when matter turns directly from gas to solid?
Deposition
300
What is the process (changing state) when matter turns from solid to gas?
Sublimation
300
Identify the energy transformation of batteries
Chemical potential energy --> electrical energy
300
Identify the energy transformation of a person running.
Biomass (chemical potential) energy --> kinetic energy
400
In your lab report, you need to have Aim, Material, and...? List all of them required in a lab report.
Aim, Material, Risk Assessment, Method, Results, Discussion and Conclusion
400
What is the formula of density? Density = deviding ( ) by ( )
Density = dividing its mass by its volume
400
The density of liquid A is 0.2 g/cm3 and the density of liquid B is 0.9 g/cm3. Which one will float on top of other liquid when you mix the liquids?
Liquid A
400
What is the energy transformation of a TV remote control?
Chemical potential energy (from battery) --> light energy (uses invisible light to change the channel or the volume)
400
Draw an energy chain for how we get the energy to run a race from eating an apple (hint: start with the sun).
Light energy (from sun) --> Biomass energy (apple) --> Biomass energy (stored in your body) --> kinetic energy (run a race)
500
What do you need to do to increase reliability in an experiment?
Experiments need to be repeated a number of times to avoid any errors.
500
Identify in which state (gas, liquid or solid) the particles have the most energy. Explain why.
Solid because the particles are strongly attracted to each other and can't move freely.
500
Why gasses can be compressed?
The atoms and molecules in gases are much more spread out than in solids or liquids. They vibrate and move freely at high speeds. A gas will fill any container, but if the container is not sealed, the gas will escape. Gas can be compressed much more easily than a liquid or solid.
500
Identify the energy transformation of trampoline jump.
Elastic potential energy --> Kinetic energy --> gravitation potential energy
500
Identify the energy transformation of a nuclear power plant.
Nuclear energy --> electrical energy