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What is the 2 most abundant gases in our atmosphere?
Nitrogen and oxygen
What is the inner core made out of
Solid nickel and iron
What are the 3 types of rocks
igneous, sedimentary and metamorphic
What does subduction mean?
Melting of metamorphic rock
What does porous mean?
Has tiny holes throughout the rock so water and air pass through it
What is the process called when magma cools to make igneous rock?
crystallisation
What are the planets in order? (Starting with the closest to the sun)
mercury, venus, earth, mars, jupiter, saturn, uranus, neptune
How do we have night and day on Earth?
It rotates (1 side is facing the sun and the other isn't)
How long does it take for the Earth to go around the Sun?
1 year (365.25 days)
What does this symbol mean?
Bulb
What does this symbol mean?
Battery
What do we use to measure current
Ammeter
What do we use to measure voltage (P.d)
voltmeter
What type of circuit is this?
Series
If a series circuit had 3 bulbs and 1 broke what would happen to the rest of the bulb?
They would turn off (the circuit is incomplete)
If a parallel circuit had 3 bulbs on different branches and 1 broke what would happen to the other bulbs?
They would stay on
