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$ 500,000 13
$ 250,000 12
$ 125,000 11
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Who Wants to be a Millionaire ? 10
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2. Ancient people discovered magnetic rocks
called lodestone. What did they use them
for?
Compasses A
To start fires B
sculptures
telephone receivers C D

3. Compasses

4. Sam was shown four objects, one of which
did not contain a magnet. Which should he
select as the one that does NOT contain
a magnet?
Wind – up clock
television A B
Electric can opener
Cassette recorder C D

5. Wind – up clock

6. Ancient Greeks thought that magnetite was
a rock with magical properties; 73 hundreds
of years later, sailors used magnetite to find
directions. Today scientists have learned
to make magnets. Which sentence best
explains how we learn science?
Ancient scientists did not know
a lot about magnets
Magic is also a part of science if
you understand it properly A B
We learn about science by
reading what others did,
then doing more
We learn much more about
science by just doing our
own experiments C D

7. We learn about science
by reading what others did, then doing more

8. Which correctly shows an electromagnet being used in today’s society?
A compass pointing the
correct direction
A crane lifting then
dropping
a metal car A B
A cupboard door
staying closed
A magnetic bracelet being
used for healing C D

9. A crane lifting then dropping a metal car

10. What characteristics do magnetic substances have? They
can push or pull objects they
are not touching
are always black and
cold to touch A B
fall faster than other objects
when you drop them
can give a “shock” when you
touch them C D

11. can push or pull objects they
are not touching

12. A circuit, coiled wire around an iron rod, and
a switch are components of which of the
following?
An electromagnet
A permanent magnet A B
A natural magnet
A magnetized paper clip C D

13. An electromagnet

14. Keisha was making an electromagnet in
class and wondered if it mattered how
many times the wire was twisted around
the nail. What would be the BEST
way for her to find
out?
Try using one battery, then
adding another battery
Try using the electromagnet
with 20, 30, then 40
twists A B
Look at someone else’s
electromagnet to see
what was used
Ask the teacher to find the
correct answer C D

15. Try using the electromagnet
with 20, 30, then 40
twists

16. What substance is attracted
to a magnet?
silver
lead A B
water
iron C D

17. iron

18. Which correctly shows an example of how magnets can help at home?
Separating aluminum cans
from glass
Lifting, then dropping metal
washers. A B
A crane lifting a car to be
crushed
Closing a refrigerator door C D

19. Closing a refrigerator door

20. What happens when two north poles of magnets are placed together?
They repel each other
They attract each other A B
They cancel each other
out
The strength of the magnet
is doubled C D

21. They repel each other

22. A student wanted to make a compass.
Which would be the best book to find this
information?
Static and Current Electricity
Magnets and Magnetism A B
All About the Earth
Maps of North America C D

23. Magnets and Magnetism

24. After reading about ancient explorers using
a rock called magnetite to build a type of
compass, Cosby wondered whether this
was really possible. What would be the best
way for Cosby to find out if a rock could
be used in a compass?
Search the internet about the
history of magnetite
Try to build a compass using a
piece of magnetite A B
Ask his science teacher if there
is a rock that’s magnetic
Decide the book was really
mixing up myth for truth C D

25. Try to build a compass using a
piece of magnetite

26. A B C D During a science activity, Lee noticed
when you place a strong magnet near a
compass, the compass’s needle lined
itself with the magnet, opposite poles together.
He also noticed that when he moved the magnet
around the compass, the needle followed the magnet. How
could Lee’s observation with a magnet and a compass
relate to Earth’s magnetic field?
Earth itself is a
giant magnet
The compass’s needle
is weak A B
Magnets will mess up
a compass
Earth’s gravity affects
magnetism C D

27. Earth itself is a giant magnet

28. A student compared a bar magnet to a
horseshoe magnet by sprinkling bits of iron
around them. From his experiment, predict
which part of the magnet is the strongest.
The north and south
poles
The middle of the magnet A B
Only the North poles
Only the South poles C D

29. The North and
South poles

30. How is Earth’s magnetic field
similar to that of a
magnet?
It has a North and South
pole
It is hundreds of miles long A B
It is made in Earth’s core
It is shaped like a horseshoe C D

31. It has a North
and South pole