Fill in the blanks with the correct answers.
Have you ever used a magnifying glass to make something melt or burn? If yes, you were using solar power! "Solar" is the Latin word for "sun" - and it's a powerful (26)________ of energy. In fact, the sunlight that shines on the Earth in just one hour could meet world energy demand (27)__________ an entire year! We can use solar power in two different ways: as a heat source, and as an energy source. People have used the sun as a heat source for thousands of years. Families in ancient Greece built their homes to get the most sunlight (28)________ the cold winter months. In the 1830s, explorer John Herschel used a solar collector to cook food during an adventure in Africa. You can even try this at home! (29)___________, we can use solar collectors for heating water and air in our homes. If you've seen a house with big shiny panels (30)____________, that family is using solar power.
(30)
A.on the top
B.on the roof
C.on the bottom
D.on the peak
Have you ever used a magnifying glass to make something melt or burn? If yes, you were using solar power! "Solar" is the Latin word for "sun" - and it's a powerful (26)________ of energy. In fact, the sunlight that shines on the Earth in just one hour could meet world energy demand (27)__________ an entire year! We can use solar power in two different ways: as a heat source, and as an energy source. People have used the sun as a heat source for thousands of years. Families in ancient Greece built their homes to get the most sunlight (28)________ the cold winter months. In the 1830s, explorer John Herschel used a solar collector to cook food during an adventure in Africa. You can even try this at home! (29)___________, we can use solar collectors for heating water and air in our homes. If you've seen a house with big shiny panels (30)____________, that family is using solar power.
(30)
A.on the top
B.on the roof
C.on the bottom
D.on the peak
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