Ace Your Space Science Project by Robert Gardner

Science Studies

By Robert Gardner

Why does not the Moon fall to Earth? Why do the seasons swap? what's parallax? how will you simulate weightlessness in the world? younger scientists will discover the sun procedure via utilized area technological know-how answering questions about house. The far-out area experiments during this ebook might help scholars make a version of a lunar eclipse, construct a spectroscope, and extra! Many experiments contain rules scholars can use for technology reasonable initiatives.

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7) How does the volume you found in question 6 compare with the volume of the larger cube that you found in question 5? You can check your answers to questions 1 through 7 by turning to here. Now let’s return to the question about the Sun’s diameter and volume as compared with Earth’s. Think of Earth as a cube. Think of the Sun as a cube that is 100 times as wide. As you can see from Figure 16, you could place 100 Earths along each edge of the Sun. Then you would have to stack 100 rows of 100 Earths before you covered one face of the Sun.

To get to the next closest star, you would have to travel 40 trillion kilometers (40,000,000,000,000 km), or 25 trillion miles. Even if you could travel at the speed of light, it would take you more than four years to reach that star. The Sun is much bigger than Earth. Recall that Earth’s diameter (the distance from one side to the other through the center) is approximately 13,000 km (8,000 mi). 4 million kilometers (868,000 mi). So the Sun’s diameter and circumference (girth or distance around) are 109 times bigger than Earth’s.

ECLIPSES OF THE SUN AND MOON Just as you cast a shadow on Earth, so may the Moon. The Moon’s shadow is seen when the Moon comes between the Sun and Earth (see Figure 17a) during a new moon. It is called an eclipse of the Sun (a solar eclipse) because the Sun, or part of it, is hidden by the Moon. Since the Moon is much smaller than the Sun, its shadow covers only a small part of Earth. And the Moon’s shadow, like yours, has a dark portion (umbra) and a fuzzy portion (penumbra). The umbra touches only a tiny part of Earth’s surface, if any.

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