Chapter 19 Exploring Space space probe reflectors mirror refractors satellite electromagnetic radiation light lens thrust 1. All radiation is classified by wavelength in the. 2. Two types of telescopes that collect visible light are and. 3. An uncrewed spacecraft is a(n). 4. Reflecting telescopes use a(n) to magnify images. 5. Refracting telescopes use a(n) to magnify images. 6. A(n) orbit another object. 7. is the force that propels a rocket forward. 8. Radio waves travel at the speed of. 1. Why do optical telescopes only work at night, while radio telescopes work all day and all night long? 2. Give a reason for putting a telescope in space. Give a reason for putting a telescope on a mountain. 3. What is an advantage of a multistage rocket? 4. What are three things that all space probes have in common?
Chapter 20 The Sun Earth Moon System, Lesson 1 Earth s Motion rotate equinox seasons axis indirect revolve solstice orbit direct 1. A(n) occurs when one of the poles is aimed toward the Sun. 2. A(n) occurs when the Earth s axis is parallel to its orbit. 3. When a hemisphere is aimed toward the Sun, the sunlight is at a high angle and is called light. 4. When a hemisphere is aimed away from the Sun, the sunlight is at a low angle (spread out) and is called light. 5. The tilt of the Earth s is a key reason why we have the seasons. 6. If the Earth did not, then we would not have day and night. 7. The are a result of the changing angles of sunlight because of the Earth s tilt as it revolves around the Sun. 8. The gravitational pull of the Sun on Earth causes Earth to around the Sun in a nearly circular. 1. What causes the seasons? (Your answer needs to include tilt, revolution, angles of sunlight, and amount of solar energy received). 2. Agree or disagree, and explain why. a. The Sun is directly overhead at the equator on each of the equinoxes. b. On the summer solstice, the Sun can be viewed overhead in the northern hemisphere (the Tropic of Cancer to be precise).
Chapter 20 The Sun Earth Moon System, Lesson 2 Earth s Moon maria waxing full half phase highlands tilted orbit craters waning 1. The of the Moon is why we don t have an eclipse every month. 2. Dark, flat areas caused by ancient lava flows are called. 3. Light, mountainous areas are called. 4. The Moon s surface is covered by, which vary in size. 5. The of the Moon is due to the relative positioning of Earth, Moon, and Sun. 6. The crescent occurs right before the new moon. 7. The gibbous occurs right before the full moon. 8. of the Moon is always lit by the Sun. 9. The moon occurs when the Moon is sunlit side completely faces Earth. 1. Draw AND label the moon phases in order. 2. Explain why we never see the far side of the Moon. 3. The Moon has a wide range of temperatures. Come up with a cause and effect hypothesis to explain why. (hints: think about gravity and atmosphere).
Chapter 20 The Sun Earth Moon System, Lesson 3 Eclipses and Tides umbra penumbra solar lunar neap spring total partial Moon 1. The is the main reasons for tides. 2. A(n) eclipse occurs when there is a new moon. 3. A(n) eclipse occurs when the order is Sun, Earth, Moon. 4. A(n) lunar eclipse occurs when the Moon passes completely through Earth s umbra. 5. A(n) lunar eclipse occurs when the Moon passes partly through Earth s umbra. 6. The is the lighter shadow surrounding the darker. 7. A(n) tide is when there is the least amount of difference between consecutive high and low tides. 8. A(n) tide occurs during a full or new moon. 1. Why do most coastal regions experience two high tides and two low tides each day? 2. Agree or disagree, and explain why. a. A spring tide always occurs during a solar eclipse. b. A spring tide is the same as a high tide. 3. Explain (and draw) why lunar eclipses last longer than solar eclipses.
Chapter 21 The Solar System, Lessons 1 4 dwarf asteroid belt Kuiper belt comet meteor inner outer nuclear fusion solar wind 1. is the source of the Sun s energy. 2. A(n) is an icey object that comes from the Kuiper belt and orbits the Sun. 3. The planets are small, dense, rocky, and have no or few moons. 4. The planets are large, made of gas, not very dense, have rings, and have many moons. 5. The planets are located mostly in the Kuiper belt, except for one that is in the asteroid belt. They share or intersect other orbits. 6. bknknk 7. The is home to rocky objects between the orbits of Mars and Jupiter, while the is home to icey objects beyond the orbit of Neptune. 8. A(n) is an object that is burning up in the atmosphere and is sometimes called a shooting star. 1. Answer the following questions about comets and meteors. a. Which direction does a comet s tail point, and why? b. Where is each object located? c. Which is hot and which is cold. Explain how you know. 2. Compare at least two other planets to Earth in terms of size and atmosphere.
Communication Systems (Not in your book) encoder transmitter receiver decoder 1. A(n) sends a signal. 2. A(n) receives a signal. 3. A(n) converts a signal to an understandable format. 4. A(n) converts an understandable format to a signal 1. Which of the four parts of a communication system would be LEAST likely to be on a space probe? Explain why.