8L - Earth and Space Flashcards
What do we use to gather evidence about other planets now?
We use spacecrafts and very powerful telescopes.
What did early astronomers use to gather evidence about other planets now?
They used theirs eyes.
Which planet did early astronomers see?
Mercury
Venus
Mars
Jupiter
Saturn
What did Ptolemy’s model look like?
Earth was at the centre. The moon, sun and other planets orbited Earth.
What did later astronomers discover?
They made more accurate observations on the movements of the planets.
What did Nicolas Copernicus do?
He published a book that suggests that Earth and Other planets circuit around the sun.
Why was Nicolas Copernicus’[s model eventually accepted?
It was supported by Galileo’s discovery from one of the first telescopes.
Who invented todays model of the Solar System?
Johannes Kepler
What does Johannes Kepler’s model look like?
The sun is at the centre and then the planets orbit the sun which is orbited by the moons.
What is the Luna 2?
It was the first probe to reach the moon. It crashed into the the moon in 1959.
What is the difference between pater probs and the Luna 2?
They made soft landings. They brought back moon rocks.
What causes the seasons in Europe?
The Earth being tilted on its axis
What causes Summer?
It is summer when the Earths axis is pointed towards the Sun.
What causes Winter?
When the Earth’s axis is pointed away from the sun.
How do ships work out where they are?
They use satellites.
When were magnets discovered?
600 BCE
What was discovered to be a magnet?
A piece of rock containing iron would point north if hung from a thread.
What is a compass?
Something that point from north to south.
What is a North Seeking Pole?
The end that point north.
What is a South Seeking Pole?
Then end that points south
What does NSP stand for?
North Seeking Pole
What does SSP stand for?
South Seeking Pole
Which side does the North repel?
North
Which side does the South repel?
South
