1
Core Subjects EC-6 Science Questions with Answers
(100% Correct Answers)
Stages of an insect Answer: Egg, larva, pupa, adult
What can you make a magnet out of? Answer: Wires and a
battery...when the current goes through the wire, the wire acts the
same way that a magnet does.
This is called an electromagnet.
Name three ways to make an electromagnet more powerful. Answer:
1. Make more coils with the wire.
2. Put an iron core (nail) inside the coils.
3. Use more battery power.
The earth has a magnetic field. Where does it come from? Answer: The
core of the earth! It is made up of nickel and iron. The North Pole and
South Pole are the poles of the magnetic force. The earth's North Pole
is really the magnetic force's south pole...it causes compasses to point
north toward it!
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,2
Who came up with the Laws of Motion? When? How many laws are
there? Answer: Sir Isaac Newton.
Late 1600's to early 1700's.
There are three laws.
Newton's First Law of Motion Answer: An object at rest will remain at
rest and an object in motion will remain in motion (with the same
speed and in the same direction) unless they are acted upon with an
unbalanced force. This is known as the law of inertia.
Purse on top of a car.
If you're driving in a car and slam into a wall...the car will immediately
stop and you will go flying forward because no force acted on you to
stop your forward movement.
Hockey puck will keep going although friction OR another hockey
stick will eventually stop it.
Rocket launching.
© 2025 All rights reserved
,3
Newton's Second Law of Motion Answer: Acceleration is produced
when a force acts on a mass. The greater the mass, the greater the
amount of force needed (to accelerate the object).
It is easier to push an empty shopping cart than a full one, because the
full shopping cart has more mass than the empty one.
If you use the same force to push a truck and push a car, the car will
have more acceleration than the truck, because the car has less mass.
Newton's Third Law of Motion Answer: For every action there is an
equal and opposite reaction.
Deflating balloon.
Jumping off a diving board...the diving board goes down and launches
you up.
Cell theory.
Who came up with it? When? Explain it. Answer: Robert Hooke (1635-
1703)
All living things are made up of cells and all cells have arisen from
other existing cells.
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, 4
What are the most abundant gases in Earth's atmosphere? Answer:
Nitrogen
Oxygen
Argon
Nitrogen is the most abundant!
Which planets are rocky? Gaseous? Answer: Rocky--Mercury, Venus,
Earth, Mars
Gaseous--Jupiter, Saturn, Uranus, Neptune
Biggest planet--Jupiter
Earth is the fifth largest planet...third planet from the sun.
Name the layers of Earth's atmosphere.
What takes place in each layer. Answer: From the closest to the Earth
to the furthest.
1. Troposphere
2. Stratosphere
© 2025 All rights reserved
Core Subjects EC-6 Science Questions with Answers
(100% Correct Answers)
Stages of an insect Answer: Egg, larva, pupa, adult
What can you make a magnet out of? Answer: Wires and a
battery...when the current goes through the wire, the wire acts the
same way that a magnet does.
This is called an electromagnet.
Name three ways to make an electromagnet more powerful. Answer:
1. Make more coils with the wire.
2. Put an iron core (nail) inside the coils.
3. Use more battery power.
The earth has a magnetic field. Where does it come from? Answer: The
core of the earth! It is made up of nickel and iron. The North Pole and
South Pole are the poles of the magnetic force. The earth's North Pole
is really the magnetic force's south pole...it causes compasses to point
north toward it!
© 2025 All rights reserved
,2
Who came up with the Laws of Motion? When? How many laws are
there? Answer: Sir Isaac Newton.
Late 1600's to early 1700's.
There are three laws.
Newton's First Law of Motion Answer: An object at rest will remain at
rest and an object in motion will remain in motion (with the same
speed and in the same direction) unless they are acted upon with an
unbalanced force. This is known as the law of inertia.
Purse on top of a car.
If you're driving in a car and slam into a wall...the car will immediately
stop and you will go flying forward because no force acted on you to
stop your forward movement.
Hockey puck will keep going although friction OR another hockey
stick will eventually stop it.
Rocket launching.
© 2025 All rights reserved
,3
Newton's Second Law of Motion Answer: Acceleration is produced
when a force acts on a mass. The greater the mass, the greater the
amount of force needed (to accelerate the object).
It is easier to push an empty shopping cart than a full one, because the
full shopping cart has more mass than the empty one.
If you use the same force to push a truck and push a car, the car will
have more acceleration than the truck, because the car has less mass.
Newton's Third Law of Motion Answer: For every action there is an
equal and opposite reaction.
Deflating balloon.
Jumping off a diving board...the diving board goes down and launches
you up.
Cell theory.
Who came up with it? When? Explain it. Answer: Robert Hooke (1635-
1703)
All living things are made up of cells and all cells have arisen from
other existing cells.
© 2025 All rights reserved
, 4
What are the most abundant gases in Earth's atmosphere? Answer:
Nitrogen
Oxygen
Argon
Nitrogen is the most abundant!
Which planets are rocky? Gaseous? Answer: Rocky--Mercury, Venus,
Earth, Mars
Gaseous--Jupiter, Saturn, Uranus, Neptune
Biggest planet--Jupiter
Earth is the fifth largest planet...third planet from the sun.
Name the layers of Earth's atmosphere.
What takes place in each layer. Answer: From the closest to the Earth
to the furthest.
1. Troposphere
2. Stratosphere
© 2025 All rights reserved
