Review 1,2,3

What keeps Earth in orbit around the Sun?

• the inertia of the Moon

• the location of Earth’s orbit

• the speed of Earth’s rotation

• the Sun’s gravitational pull

Martin needs to push a box up a ramp. Which forces will Martin work against MOST when he pushes the box up the ramp?

• friction and gravity

• inertia and magnetism

• magnetism and friction

• gravity and momentum

Students used a pair of battery-powered scissors to cut fabric for a craft project. What simple machines work with the electricity to make the scissors cut?

• lever with a wedge

• a wedge with a pulley

• a lever with a wheel and axle

• wheel and axle with a screw

A bus traveled 280 kilometers between two cities. It left the first city at 3:00 p.m. and arrived at the second city at 7:00 p.m. What was the average speed of the bus during the trip?

• 4 km/h

• 40 km/h

• 70 km/h

• 280 km/h

Anna ran 100 meters in 20 seconds. What was her average speed?

• 2 m/s

• 5 m/s

• 20 m/s

• 25 m/s

Evaporation, condensation, and precipitation are all processes which occur in the which cycle?

• water cycle

• energy cycle.

• carbon cycle

• nitrogen cycle.

Which property of sugar remains after sugar is dissolved in water?

• color

• taste

• shape

• texture

What process of the water cycle is taking place when a cloud forms?

• absorption

• transpiration

• condensation

• precipitation

Tasha takes a trip to an orchard to pick apples with her friends. Tasha and her friends combine their apples and put them on a scale. The weight of the apples is more than the scale can measure. Which will give Tasha and her friends the MOST accurate weight of the apples?

• Weigh an empty box then put the apples in the box

• Adjust the scale so it shows a measurement of the apples

• Divide the apples into smaller sets and weigh each set separately

• Weigh one apple and multiply the weight by the number of apples

Chris fit the pieces of a space shuttle model together. Which statement BEST describes how the pieces compare to the completed model?

• Each piece is stronger than the completed model

• The mass of the completed model equals the mass of all the pieces

• Each piece is made from a different material than the completed model

• The mass of the completed model is more than the mass of the all the pieces.