2,003
edits
Stellarium/Activity: Difference between revisions
From OER in Education
→Introduction (10 to 15 mins)
| Line 40: | Line 40: | ||
reflect light, like the moon. What does reflecting mean? When we think of reflecting, we usually think of a mirror. Mirrors certainly do reflect light '''''<nowiki>[</nowiki>'''point flashlight at the mirror, with mirror aimed at the ceiling or a nearby wall if possible ''']''''', which you can see when I do this. We can see the moon because it's reflecting light from the sun back to Earth. The moon acts like this mirror to bounce light to us on Earth, and the sun acts like the flashlight—it makes light. | reflect light, like the moon. What does reflecting mean? When we think of reflecting, we usually think of a mirror. Mirrors certainly do reflect light '''''<nowiki>[</nowiki>'''point flashlight at the mirror, with mirror aimed at the ceiling or a nearby wall if possible ''']''''', which you can see when I do this. We can see the moon because it's reflecting light from the sun back to Earth. The moon acts like this mirror to bounce light to us on Earth, and the sun acts like the flashlight—it makes light. | ||
E) What else is in the sky? | E) What else is in the sky? Many things, including planets. '''''<nowiki>[</nowiki>'''Show poster of the solar system if available .'''] '''''Do the planets make light like stars, or do they reflect light like the moon? They reflect light. What are the planets made of? It depends on the planet. Some are made of rock, like Mars and Earth, while | ||
others are made of gas, like Jupiter and Saturn. But none make their own light. Just like the moon, they reflect light from the sun, which is why we can see them. | others are made of gas, like Jupiter and Saturn. But none make their own light. Just like the moon, they reflect light from the sun, which is why we can see them. | ||
