Gathering Evidence
What is the name of the "neighbourhood" where Earth, the Sun, and all our close planets live?
In summer, are the days longer or shorter?
Longer
What tool uses a magnet to show direction?
Compass
What is the unit of weight?
Newton (N)
Put these in order from smallest to largest:
Galaxy, Sun, Universe, Earth
Earth < Sun < Galaxy < Universe
How long does it take the Earth to orbit the Sun?
365 days (365.25 days)
What imaginary line divides Earth into the Northern and Southern Hemispheres?
Equator
Do opposite magnetic poles attract or repel?
attract
What is gravity?
force of attraction between all objects
What is the name of our galaxy?
Milky Way
What shape is the Earth?
Spheroid
Why the days are hotter in Summer?
The longer the Sun is shining on an area, the more time to warm up
Longer days = warmer temperatures
What is a magnetic field?
The area around a magnet where it attracts magnetic materials
What is matter?
Anything that has mass and takes up space
What is a pattern of stars called?
constellation
How can we see the Moon and other planets from Earth?
They reflect the Sun's light
What is the name for the imaginary line through an object that it rotates around
axis
Where is a magnet's magnetic field strongest?
at the poles
A rock, with mass = 40 kg, is on Earth, which has a g value of 10 N/kg. What is the rock's weight?
400 N
What unit is used to measure very large distances in space?
Light year
What creates the phases of the moon?
The Moon's orbit around the Earth and how much of the Sun's light is reflected by the Moon
What causes Earth to have seasons?
Tilted axis
How do compasses work?
They are magnets that always point to Earth's North Pole (south side of Earth's magnet)
What is the unit for gravitational acceleration (g)?
N/kg or m/s2
What is a star?
A big ball of gas that releases light and heat energy