UNIT 7: ENERGY TEST

What is energy? Sort the Energy Resources Non-renewable Energy Sources natural gas coal nuclear fuels petroleum Renewable Energy Sources biomass hydraulic energy wind turbines light geothermal energy The form of energy related to temperature is ... chemical energy thermal energy light energy Energy can be transformed. For example, ... batteries store chemical energy. electrical energy becomes light energy in a lamp electrical energy moves through electric cables Non-renewable energy sources will... run out one day. never run out. become renewable. The Earth's temperature is increasing. This is called... the greenhouse effect global warming solar energy The energy in biomass is ... chemical energy. geothermal energy. mechanical energy. Burning fossil fuels... produces radioactive waste. can produce acid rain. uses up the Sun's energy The gases in the atmosphere that absorb heat are known as... air pollution toxic substances greenhouse gases PROPERTIES OF ENERGY Match the the sentences with the words One form of energy can be changed into a different form of energy. Energy can be... transformed Energy in an object can be transmitted to another object. Energy can be... transferred Energy can be moved from one place to another. Energy can be... transported Energy can be kept to be used later. Energy can be... stored TYPES OF ENERGY Name the energy source used in each case. Light energy Mechanical energy Nuclear energy Thermal energy Chemical energy Electrical Energy Fill in the blanks the correct answer. Use ONE word When you use an oven, electrical energy is transformed into thermal energy.During photosynthesis, light energy from the Sun is transformed into chemical energy.When you play with a remote control car, the chemical energy from the batteries is transformed into mechanical energy.When you turn on a lamp, energy is transformed into light energy. ENERGY SOURCES Complete the table ENERGY SOURCE TYPE OF ENERGY WIND mechanical energy NUCLEAR FUELS nuclear energy WATER mechanical energy EARTH'S INTERNAL HEAT thermal energy FOSSIEL FUELS chemical energy THE SUN Light and thermal energy Write two ways to save energy. Which of the following human activities does NOT release carbon dioxide into the atmosphere? burning fossil fuels fishing deforestation driving What happens when we burn fossil fuels? a huge fire we release carbon into the atmosphere we release oxygen and carbon dioxide in the air What is the greenhouse effect? The warming of a planet due to trapped radiation. The cooling of Earth due to air pollution. The heating of a solid, such as a rock. The melting of the polar ice caps Which of the following are considered GREENHOUSE Gases? (Choose more than one option) Carbon Dioxide Oxygen Nitrogen Water Vapor Methane Match the KEYWORDS and DEFINITIONS Acid rain is produced by toxic substances Fossil fuels causes air pollution Greenhouse gases trap heat in the atmosphere Air pollution causes respiratory diseases