Science Unit 4 Review

Students have short and tall ramps and toy cars with which to create an investigation. Which of the following is a testable questions students could answer in an investigation using these materials?

• What kind of material should be used to make roads?

• What kind of toy car is the overall best kind to buy?

• How does ramp height affect the distance they toy car rolls?

• What kind of scientist can best explain how cars work?

By changing the surface over which a ball rolls, students could investigate the effect of which of the following?

• Magnetism

• Electricity

• Rotation

• Friction

Students rolled a baseball down a ramp and measured the distance it traveled on three different surfaces. Which question could they be trying to answer?

• Why do baseballs stop after rolling down a ramp?

• How does the surface affect how far a baseball rolls?

• How does a baseball stop rolling on a flat surface?

• Which kind of ball rolls the farthest down a ramp?

Which two tools below would be the most useful in investigating how the mass of an object can affect the distance it moves with a push?

• Spring scale and hot plate

• Balance and meter stick

• Graduated cylinder and beaker

• Magnet and thermometer

Students wanted to investigate if water balloons dropped from greater heights made larger splatters. This experiment is an investigation of the effect of which of the following?

• Temperature

• Sound

• Gravity

• Magnetism

Which of the following describes the best way to investigate the strength of several different magnets?

• Place each magnet in water to see if it sinks.

• Count how many paper clips each magnet can pick up.

• Use tools to measure the mass and length of each magnet.

• Place the magnets near each other to see how they move.

Students are conducting an investigation that tests the force of a magnet by using one magnet to repel a second magnet. Which tool would be needed to measure the distance the second magnet moves?

• a thermometer

• a spring scale

• a ruler

• a compass

Friction slows down and stops objects. An item on a surface with a greater amount of friction would...

• travel a further distance

• travel a shorter distance

• keep moving forever

• not move at all

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Students performed an experiment in which they rolled toy cars with different masses down the same ramp three times. Which testable question could the students be investigating?

• Does the surface of a ramp affect the distance a toy car travels?

• How is a toy car affected by the attraction of magnets?

• Does the mass of a toy car affect the distance it travels?

• How does ramp heigh affect the distance a toy car travels?

Students design an experiment to determine how much force is needed to move blocks of woods of different masses slowly across a lab table. Which procedure should students include in their design?

• Conduct five trials, using a different scale to pull each block of wood

• Conduct five trials, pulling a different side of the block each time

• Conduct five trials, using a different table for each trial

• Conduct five trials, pulling each block of wood in the same way for each trial