1) What is the dependent variable? a) The thing you change in an investigation b) The thing you measure in an investigation c) The thing you keep the same in an investigation d) The equipment you use in an investigation 2) Why do we need oxygen? Pick the BEST answer. a) To breathe b) To live c) To give us energy d) To keep our lungs open 3) Name an organelle that an animal cell has. a) Cell wall b) Mitochondria c) Chloroplast d) Vacuole 4) Which of these organs in the digestive system does the food not pass through? a) Liver b) Oesophagus c) Stomach d) Rectum 5) Complete the equation: Acid + Alkali --> a) Salt + Hydrogen b) Salt + Water c) Salt + Oxygen d) Salt + Carbon Dioxide 6) Pick the force a) Gravitational potential b) Thermal c) Elastic potential d) Weight 7) What happens to the current in a series circuit? a) It stays the same all the way around b) It is different at different points 8) Where does the energy in our food originally come from? a) The Sun b) The ground c) Animals d) Asda

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