Juan and Tanisha wanted to build a track for their marbles. They wanted to see how fast their marbles would run down one
side and how far the marble would roll back up the other side.
"Let's make the track from some wood," said Tanisha. Juan wanted to try plastic for the ramp. He thought it woul be smoother
and the marbles would roll faster.
What would be a testable question for their research on the ramp?
A)How can we make out marbles roll very fast?
B)Plastic is the best material for a marble ramp.
C)What material would be best for building a smooth ramp?
D)The marbles will roll faster on plastic and slower on wood.
Answers: 3
Chemistry, 22.06.2019 13:30, citlalli30
1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6
Answers: 2
Chemistry, 22.06.2019 18:40, bananaslada
What is the binding energy of a nucleus that has a mass defect of 5.81*10-^29 kg a 5.23*10-^12 j b 3.15* 10^12 j c 1.57*10-3 j d 9.44*10^20 j
Answers: 1
Juan and Tanisha wanted to build a track for their marbles. They wanted to see how fast their marble...
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