8th grade PASS Science Review

This force stops motion

• friction
• gravity
• inertia
• rotation

An unbalanced force will cause a change in 

• position
• direction
• speed
• all of the above

What is it called when you identify something with your five senses?

• inference
• observation
• theory
• conclusion

What is a hypothesis?

• a possible outcome
• an educated guess about an experiment
• a testable explanation of an outcome for an experiment
• an experiment that can be tested

According to the chart, which organism first appeared about 280 million years ago?

• Turtles
• Conifers
• Sponges
• Trilobites

Which is the independent variable in the following example: Cinderella is wondering if the temperature affects how fast her carriage is.

• Temperature
• Her glass slipper
• How fast her carriage goes
• Her fairy godmother

What quantitative observation can we make about this dinosaur?

• huge hands
• spotted
• two legs
• small head

According to the chart, which of these organisms first appeared on earth?

• Turtles
• Primates
• Rabbits
• Sneaky Snakes

What might explain the results of this experiment?

• Plants make their own food
• Plants produce oxygen
• Plants get more nutrients from soil than from sand
• Plants get more nutrients from sand than from soil

the movement of Earth during a year

• revolution
• rotation
• tilt
• phase