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Science 8 Eureka

Review #1-15

QuestionAnswer
Tell or draw the relationship between the universe, the Milky Way, the Solar System, the Earth and the moon? The universe contains the Milky Way Galaxy. The Milky Way contains the Solar System, the solar system contains the Earth, and the moon orbiting the Earth.
What is the shape of the Earth’s orbit around the sun? Elliptical (an ellipse)
In what ways do the planets differ from each other? • Temperature • Mass • Amount of gravitational pull • Atmosphere • Rings • Length of day and year • Distance from the sun • Chemical composition • Life forms or not
Name the two movements that the Earth makes and describe each - Rotation (rotate): occurs when the Earth spins on its axis Takes 24 hours or 1 day - Revolution (revolves): occurs when the Earth travels around the sun. Takes 365 ¼ days or 1 year
When it is summer in NJ, what season is it in Australia? Explain your answer. It is winter in Australia. When the northern hemisphere (NJ) is tilted towards the sun, the southern hemisphere (Australia) is tilted away from the sun. The Earth’s tilt on its axis causes the seasons.
Draw the Earth and label it with tropical, temperate, and polar zones. Polar Zone Temperate Zone Tropical Zone Temperate Zone Polar Zone
What determines the phases of the moon? The relative positions of the Sun, Earth, and Moon, and part of the lit side of the moon we see determine the moon’s phases.
Draw the position of the Earth, Sun, and Moon during a full, new, first and third quarters. Label each position. New,1st Quarter, Full & 3rd Quarter counter clockwise
Why does the same side of the moon always face the Earth? The moon makes one rotation in the same amount of time that it makes one revolution, 28 days. One moon day is 28 days as is one moon year.
Why does the same side of the moon always face the Earth? • The moon makes one rotation in the same amount of time that it makes one revolution, 28 days. • One moon day is 28 days as is one moon year.
Draw the positions of the Earth, Sun, and Moon during a solar eclipse. Tell what you see during a solar eclipse. sun - moon - Earth You see the atmosphere (corona) of the sun.
Draw the positions of the Earth, Sun, and Moon during a lunar eclipse. Tell what you see during a lunar eclipse. Sun - Earth - Moon
Draw the positions of the Earth and the Moon during high tide. How many high and low tides are there each day? In general, there are 2 high tides and 2 low tides everyday.
What influence does the sun have on the tides? The gravitational force of the sun influences the tides. The lower high tides are when the Sun is at a right angle to the Moon. This causes a Neap Tide.
Of what material is a comet made, and what is the shape of a comet’s orbit? Comets are made of ice, small rocks, and dust. A comet’s orbit is in an elliptical shape.
Why does the tail of a comet face away from the sun? The tail of a comet faces away from the sun because the solar winds blow the tail away from the sun.
Created by: kolinchakm
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