We know that the sun is very important. It provides energy for plants, animals and people on Earth. But how does the Sun does that? It’s the Sun energy that makes life on our planet possible. Ennergy from the Sun is called solar energy. It comes in thr form of light or heat. Solar energy is what makes you feel hot when you sit in the sunlight. People have used solar energy for thousands of years. Houses were built with windows so that sunlight could get inside and provide heat. The sun’s energy can also be used to heat water and even food. If you have a magnifying glass, your parents have probably warned you about leaving it in the sun. Solar energy can actually make the magnifying glass burn objects under it, causing solar thermal energy. We can also turn the sunlight into electricity. This is done with solar panels. Solar panels are made up of a material called silicon. The silicon is heated and formed into very thin wafers. When the sunlight hits the solar panel, the electrons (tiny particles) in the silicon move and flow through wires built into the solar panel. Using this technology, we can run a calculator and even power cars. 27. What is the follwing is NOT true according to the passage? a. The Sun only provides energy for human beings. b. Animals need solar energy c. Energy from the Sun makes life on the planet possible d. The Sun is very important 28. Why did people build houses with windows a. They have used solar energy for thousands of years b. They want to get sunlight. c. They want to be safe d. They want to sit in the sunlight 29. What happen if you leave a magnifying glass in the sun? a. It can make fire b. Nothing happens c. Solar energy can change it into a bigger one. d. Sunlight makes it a little darker, causing solar thermal energy 30. What are solar panels used for? a. to block the sun’s dangerous rays b. to generate water from the sun c. to generate heat energy from the sun d. to generate electricity from the sun