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revision mind map (physics (fossil fuels (Crude oil, coal and gas are…

- - - - use solar panels to create solar energy
      - solar energy is renewable and therefore helps the environment
      - gravitational energy
        
        a waterfall is a good source of energy because of the gravitational energy
        
        is good for the environment
        
        good for the environment
        
        is a renewable energy
      - uses the suns energy and converts it into energy
      - is space
      - chemical energy
        
        food is a chemical energy
        
        some chemical energy are bad for the environment
        
        coal is a chemical energy
        
        fuel is a chemical energy because it is made out of chemicals and is burnt to make energy
        
        kinetic energy
        
        a waterfall is a good source of kinetic energy because when the water falls then it loses gravitational energy but gains kinetic energy as it fall then it turns into thermal energy at the bottom
        
        kinetic energy is also found when the wheels of a car move
        
        it is sometimes good for the environment
        
        kinetic energy can be a renewable energy
        
        thermal energy
        
        thermal energy is found outside of a lamp or light
        
        thermal energy is found at the bottome of a waterfall the
  - - - gravitational energy
      - kinetic energy
      - thermal energy
      - nuclear energy
      - elastic energy
      - chemical energy
      - electrical energy
      - first law of thermodynamics is energy cant be created or destroyed it only transfers between forms of energy
    - - Everything is made up of tiny particles.
      - The properties of a substance depend on what its particles are like, how they move and how they are arranged.
      - The properties of a substance depend on what its particles are like, how they move and how they are arranged.
      - The particles in a substance are the same whether it's in the solid, liquid or gas state, but their arrangement and movement change.
      - Gases
        In the gas state, widely-spaced particles move around randomly. This explains why you can compress gases and why they flow.
      - Liquids
        In a liquid the particles still touch their neighbours but they move around, sliding over each other. This is why you can pour, but not compress, a liquid.
      - Solids
        In the solid state the vibrating particles form a regular pattern. This explains the fixed shape of a solid and why it can’t be compressed or poured.
  - - - coal was formed from dead trees and other plant material
      - crude oil and gas were formed from dead marine organisms
  - - - wasted energy
        
        light energy is sometimes wasted
        
        sound is sometimes wasted
        
        thermal energy is usually wasted
- - - - breathing
        
        inhaling is rich in oxygen
        
        exhaling is rich in carbon dioxide
    - - is pump to pump blood around the body
- - - - Au stands for gold
      - O stand for oxygen
      - Ag stands for silver
      - Fe stands for iron
      - Mg stands for magnesium
      - Na stands for sodium
      - H stands for hydrogen
      - He stands for helium
      - RB stands for rudium