P6: Earth and Space
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
卡片预览 (20 张)
What causes day and night?
The rotation of the Earth on its axis
How long does it take the Earth to orbit the Sun?
365 (and a quarter) days
How are all planets kept in orbit around the Sun?
The Sun’s gravitational pull
Which planet will take the longest to orbit the Sun - Mercury or Neptune?
Neptune
Name one thing a star does that a planet doesn’t.
Stars give out light
As the Earth orbits the Sun, what causes the seasons?
The tilt of the Earth’s axis
What causes a solar eclipse?
The Moon passes between the Sun and the Earth - blocking the Sun’s light from reaching the Earth
What are objects which orbit planets called?
Satellites (moons)
How long does it take the Moon to orbit the Earth?
28 days
Give 2 reasons why it’s (supposedly) hotter in Britain in Summer than Winter?
• More time spent in Sun light - so the land heats up 2. Sun’s rays are focused on a smaller area
KEYWORD: A system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
Galaxy
KEYWORD: A fixed luminous point in the night sky which is a large, remote incandescent body like the Sun.
Star
KEYWORD: One rotation of the Earth (or any planet) on its axis
Day
KEYWORD: The time taken by the Earth to make one revolution around the Sun.
Year
KEYWORD: The force that attracts a body towards the centre of the earth, or towards any other physical body having mass.
Gravity
KEYWORD: The natural satellite of the earth, visible (chiefly at night) by reflected light from the sun.
The Moon
KEYWORD: A body in orbit round the Earth or another planet. Artificial ones can be used to collect information or for communication.
Satellite
KEYWORD: Caused by the Earth’s tilted axis as it orbits the Sun.
Seasons
KEYWORD: The time taken for the Moon to orbit the Earth
(Lunar) Month
KEYWORD: When all or part of the Sun is obscured by the Moon
Solar Eclipse