space science chapter 2 notes. bell work 1/26/11 write each statement. then decide if the statement...
TRANSCRIPT
Space Science
Chapter 2 Notes
Bell Work 1/26/11Write each statement. Then decide if the
statement is true or false. If false, then correct it.
1. The sky seems to turn because Earth stays still.
2. Mass is the force that keeps a satellite in orbit around an object in space.
3. Earth is a satellite of the Sun.
Earth’s rotation causes day and night Gravity pulls objects toward the center of the
Earth As Earth turns so do you
You keep the same position on Earth The view above your head changes
The directions north, south, east, and west are based on the way the planet turns
At any one time, half of Earth is in sunlight
Earth’s tilted axis and orbit cause seasons Revolution – the motion of one body around
another or the time it takes an object to go around once Example – Earth in its orbit around the Sun
As Earth moves, its axis always points in the same direction in space
It takes Earth 1 year or
364.25 days to make one
revolution around the Sun
Seasonal Patterns
Seasons – patterns of temperature changes and other weather trends over the course of a year
Seasons occur because the amount of sunlight at each location changes during the year
Equinox – sunlight shines equally on the northern and southern hemispheres
Solstice – the area of sunlight is a maximum in one hemisphere and a minimum in the other hemisphere
Seasonal Patterns September Equinox – half of the
sunlight is in each hemisphere. The strongest sunlight in on the equator
December Solstice – Less than half of the Northern Hemisphere is in sunlight. The strongest sunlight is south of the equator, so the Southern Hemisphere grows warmer.
March Equinox – half of the sunlight is in each hemisphere. The strongest sunlight is on the equator.
June Solstice – more than half of the Northern Hemisphere is in sunlight. The strongest sunlight is north of the equator, so the Northern Hemisphere grows warmer.
Bell Work 1/26/10
Please answer #1-3 on page 49 of your book on your bell work sheet.
Bell Work 1/28/11 Decide if it is True/False – correct if it is False1. The imaginary line running from North Pole to
South Pole through the center of Earth is called the axis of rotation.
2. One complete revolution of Earth moving around the Sun takes one month.
3. Seasons are patterns of temperature and weather changes through the course of a year.
4. At an equinox, the area of Earth lit by sunlight is at a maximum in one hemisphere and at a minimum in the other hemisphere.
Bell Work 1/31/11 Decide if it is True/False – correct if it is False1. In the Northern Hemisphere, spring begins on
the September equinox.
2. Many parts of Earth experience seasons because the angle of sunlight shining on that part of Earth changes throughout the year.
3. The part of Earth that faces the Sun changes as Earth rotates on its axis, which is why Earth has summer and winter.
4. Sunlight shines equally on the northern and southern hemispheres at an equinox.
Bell Work 2/7/11
Define each word1. Revolution2. Axis of rotation3. Season
The Moon is Earth’s natural satellite.
The Moon’s near side always faces Earth.
20.220.2
Dark-colored maria formed from
lava-filled craters.
Light-colored highlands are old and cratered.
The Moon is Earth’s natural satellite.
The Moon’s near side always faces Earth.
The Moon has layers.
core
mantle
crust
20.220.2
Bell Work 2/8/11
1. What are the dark spots on the moon called? How were they made?
2. What are the light spots on the moon called?
3. List the three layers of the moon.
Bell Work 2/3/10
Please begin working on your moon research WITHOUT talking
Bell Work 2/8/10
Answer #4-6 on page 57 on your bell work sheet
Positions of the Sun and Moon affect Earth.
Lunar phases are different views of the Moon’s sunlit half.
Moon
Earth
20.320.3
Bell Work 2/9/11
Answer #1-3 on page 57 on your bell work sheet.
Positions of the Sun and Moon affect Earth.The Moon’s gravity causes
tides as Earth turns.
Moon
low tide
High tide
rotation of Earth
20.320.3
Positions of the Sun and Moon affect Earth.Shadows cause eclipses.
umbra
penumbra
20.320.3
Bell Work
Complete on the green sheet from last week, on Wednesday
Pg 69 #7-16 write the answers only
Please get your name and id from the counter by the sinks. If you are at a computer seat please get logged onto the computer and open the Space Ch. 2 Test.
If you want to have the test read to you then you do not need to get and id and login sheet and you do not need to log onto the computer.
Bell Work
Write 3 sentences about what you learned on the Space Bus.
Bell Work 2/14/11
Draw and label the 8 phases of the moon.
Bell Work 2/15/11
1. What makes the Moon wax and wane?
2. Why do tides on Earth occur?
3. What happens during a total solar eclipse?