Roman mixed his favorite small snacks into a trail mix. How did the physical properties of the different snacks change when he created the mixture?
The physical properties stayed the same and did not change.
Oops!
Check
Okay!
Check
25
Why is current electricity a better source for use in our homes than static electricity?
You need a steady flow of electricity to run things, and you can turn off the electricity when not needed.
Oops!
Check
Okay!
Check
15
A mixture is made by combining sand and iron filings. What could you use to separate the iron filings from the sand?Â
magnet
Oops!
Check
Okay!
Check
20
Electricity cannot flow through rubber, therefore rubber is a(n) ____________.
insulator
Oops!
Check
Okay!
Check
20
True of False: Socks from the dryer sticking together is an example of human-harnessed electricity?
False. Socks sticking together is an example of static electricity.
Oops!
Check
Okay!
Check
banana
Go to last place!
Oops!
fairy
Take points!
5
10
15
20
25
fairy
Take points!
5
10
15
20
25
thief
Give points!
5
10
15
20
25
25
When Joshua created this table, he forgot to put labels on each column. What should he label Column A and Column B?
Column A conductors and Column B are insulators.
Oops!
Check
Okay!
Check
trap
No points!
Oops!
magnet
Take 20 points!
Okay!
shark
Other team loses 25 points!
Okay!
lifesaver
Give 20 points!
Oops!
15
Which object always works because of Earth's magnetic field?
a compass
Oops!
Check
Okay!
Check
15
Students construct a simple circuit and place an item in the path. All of the following materials will conduct electricity EXCEPT __________. (steel, rubber, copper, aluminum)
rubber
Oops!
Check
Okay!
Check
20
Which type of magnet maintains a magnetic field at ALL times?
permanent magnet (bar, horseshoe, wand, ring)
Oops!
Check
Okay!
Check
boom
Lose 50 points!
Oops!
rocket
Go to first place!
Okay!
shark
Other team loses 10 points!
Okay!
baam
Lose 20 points!
Oops!
15
Human-harnessed electricity is another name for _________ electricity.
current
Oops!
Check
Okay!
Check
15
Where is the magnetic field the strongest on a magnet?
at the ends or the poles
Oops!
Check
Okay!
Check
15
If you set a piece of paper on fire, what kind of change takes place?
