Unit 4 Vocabulary part 1

Edit Answers
123456789101112131415161718
Across
  1. 3. The four different times of the year (spring, summer, fall, and winter) caused by Earth's tilt and revolution around the Sun. In summer, the days are longer, and in the winter they are shorter.
  2. 5. A tide with very high water levels and very low water levels. Spring tides happen during a full moon and a new moon, when the Sun, Earth, and Moon are in a straight line.
  3. 7. An imaginary line around the middle of Earth that divides it into the northern and southern hemispheres. Places near the equator like Ecuador have warmer weather all year.
  4. 11. A group of stars that form a pattern in the sky. The Big Dipper is a well-known constellation that helps people find direction at night.
  5. 14. The path an object takes around another object in space. Earth orbits the Sun, and the moon orbits the Earth.
  6. 15. When ocean water reaches its highest level on the shore. High tides happened when the moons is directly above or on the opposite side of the Earth.
  7. 16. An imaginary line that runs through Earth from the North Pole to the South Pole. Earth is tilted on its axis, which helps create seasons.
  8. 17. The half of Earth below the equator. Countries like Australia and Argentina are in the Southern Hemisphere.
Down
  1. 1. The changing shapes of the Moon we see from the Earth. The Moon looks difference throughout the month, from a full circle (full moon) to no moon (new moon).
  2. 2. The two times a year when the Sun is the farthest from the equator.The summers solstice (June) has the longest day, and the winter solstice (December) has the shortest day.
  3. 4. When the Earth spins around its axis, it is called rotation. This causes day and night. One full rotation takes about 24 hours.
  4. 6. The rising and falling of ocean water caused by the Moon's gravity. There are two high tides and two low tides every day.
  5. 8. The force of gravity from the Moon and Sun that pulls on Earth's oceans. This force causes the tides to rise and fall.
  6. 9. The movement of Earth around the Sun is called revolution. It takes about 365 days, or one year, to complete one full revolution. This movement affects the seasons.
  7. 10. The half of Earth above the equator. The United States and Europe are in the Nothern Hemisphere.
  8. 12. When ocean water reaches its lowest level on the shore. Low tides happen between high tides, about six hours apart.
  9. 13. A tide with smaller changes in water levels. Neap tides happen during the first and third quarter moons, when the Sun, Earth, and Moon form a right angle.
  10. 18. The two times a year when day and night are almost equal everywhere on Earth. The spring equinox happens in March, and the fall equinox happens in September.