Student Worksheets SCIENCE and TECHNOLOGY Sustainability and Energy Stage 3 FW3E1 Name: © FutureWorld Revised 2014 FW3E1 Station 1 – The Greenhouse Effect What is the atmosphere? Our atmosphere is a thin layer of air surrounding the earth. Pretend the model’s plastic bubble is the atmosphere. T 1. Using the greenhouse model, while in the sun or under the lamp, measure the temperature inside and outside simultaneously over a three minute period. Record your readings in the table below. Time (minutes) T1 (oC) (outside temperature) T2 (oC) (inside temperature) 0 (Initial Temperature) 1 2 3 Name three Greenhouse Gases. ________________________________ ____________________________, _____________________________. Would you like to live in a world that was as hot as it became under the bubble all the time? __________________ The air is a mix of different kinds of gases. If too much of that mix is made up of greenhouse gases, the air temperature starts to increase. When we burn less coal, petrol, oil and other fossil fuels we release less greenhouse gases into the atmosphere. © FutureWorld Revised 2014 FW3E1 Station 2 – Sustainable Technologies - Wind Power Wind turbines come in many different sizes. The bigger the wind turbine blades, the greater the power output from the wind turbine. The higher the wind speed the greater the power generated. 1. Generator Look at the the picture of a turbine and draw arrows from the labels to the parts of a wind turbine. Nacelle Rotor blades Tower Foundation 2. Model wind farm. Turn the handle and use the anemometer to record the maximum wind speed you produced and power produced in kilowatts. WIND SPEED (metres/second) POWER PRODUCED (kilowatts) © FutureWorld Revised 2014 FW3E1 Station 3 – Sustainable Transport How do we use energy to move ourselves and our things around? What are some examples of fossil fuels? (ask your volunteer if you’re unsure) What are some ways we can choose to move ourselves around which use less fossil fuels (or even none at all)? (Lift the red lids for clues) Circle ONLY the sustainable forms of transport below © FutureWorld Revised 2014 FW3E1 Station 4 – Greenhouse Bike “Saving energy” 1. Pedal the bicycle. Pedalling the bike you are using mechanical (kinetic) energy. This energy is changed to _______________ energy to power the appliances. List the electrical items have you powered Power required (Watts) [ Read from the display] The electricity most people use is produced by coal burning power stations. Burning coal produces carbon dioxide. 2. What atmospheric gas is represented by the bubbles in the greenhouse gasometer? __________________________. 2. Place the following words in the paragraph below. increased, carbon dioxide, burning coal, warmth, fossil fuels The greenhouse effect is a natural process in the atmosphere. Greenhouse gases trap the sun’s ______________. Human activities such as ___________________________ have led to ______________ concentrations of greenhouse gases such as ___________________________ in the atmosphere. We can minimise the greenhouse effect by burning less ______________________________________. © FutureWorld Revised 2014 FW3E1 Station 5a – Reducing our Impact on the Environment How can we save energy and water at SCHOOL & HOME? 1. Using ideas you have seen in the Eco-House or by looking at the pictures below, list ways you can save energy and water at home. In the kitchen/canteen In the bathroom Yard/ garden Other places eg. classroom © FutureWorld Revised 2014 FW3E1 Station 5b – Reducing our Impact on the Environment The four ‘“Rs” Reducing waste is a good way of becoming sustainable. To help us, we can remember the four ”R”s Reduce - Don’t buy things we don’t really need Refuse - Don’t buy packaged items Reuse - Take green shopping bags to the shops Recycle - Use old things to make new ones Activity Each person in your group is given a piece of garbage. You have to place the item in the proper garbage bin. TICK THE CORRECT BOX Yellow bin – used for General rubbish Recyclables Green waste Green bin – used for Glass General rubbish Green waste Red bin – used for Plastic General rubbish Green waste © FutureWorld Revised 2014 FW3E1 Station 6 - Solar Investigation - Solar Powered Pump Making electricity from the sun is called Solar Power. Solar energy does not pollute the air and can be used instead of the energy from a power point. Solar Pumps can be used in areas with no conventional electricity for pumping water to crops or for drinking water. The solar photovoltaic panel converts sunlight into electricity. We can use solar electricity to power a water pump. Working in your group, complete the following investigation. Objective: When does the solar pump work best? Procedure: Record how long it takes to fill the bucket with water from the solar pump in the following conditions A and B. A B Results: Pump operating conditions Time (seconds) A The solar panel pointing directly towards the sun. B The solar panel held parallel to the sun’s rays. C The solar panel with half the cells covered. Conclusion: The pump works best when © FutureWorld Revised 2014 FW3E1