These science questions have been taken from the following state and regional science exams in the United States: AIMS-Arizona's Instrument to Measure Standards, Alaska Department of Education & Early Development, California Standards Test, MCAS-Massachusetts Comprehensive Assessment System, Maryland School Assessment, MEA-Maine Educational Assessment, MEAP-Michigan Educational Assessment Program, NAEP-National Assessment of Educational Progress, North Carolina End-of-Grade Assessment, New York State Educational Department Regents exams, Ohio Achievement Tests, TAKS-Texas Assessment of... Show more

These science questions have been taken from the following state and regional science exams in the United States:
AIMS-Arizona's Instrument to Measure Standards, Alaska Department of Education & Early Development, California Standards Test, MCAS-Massachusetts Comprehensive Assessment System, Maryland School Assessment, MEA-Maine Educational Assessment, MEAP-Michigan Educational Assessment Program, NAEP-National Assessment of Educational Progress, North Carolina End-of-Grade Assessment, New York State Educational Department Regents exams, Ohio Achievement Tests, TAKS-Texas Assessment of Knowledge and Skills, Virginia Standards of Learning, & Washington MSP.
 

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Middle School Science Review 2 (8th Grade, With Diagrams)

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25 Questions

1. The diagram below shows a pencil in a glass of water.

When viewed from the side the pencil appears to be broken. What process causes this to happen?

absorptionevaporationreflectionrefraction

2. Base your answers on the topographic map below which shows the elevation of land in feet above sea level. Points A B and C are locations on the map.

A camper walked from point A to point B by taking a path shown by the dotted line. What is the approximate distance the camper walked?

3.5 miles2.5 miles1.5 miles3.0 miles

3. The diagram below shows an incomplete circuit.

Which item would allow the bulb to light up if it were used to connect point A to point B?

a metal coina paper cupa glass roda plastic comb

4. Base your answers on the graph below which shows the solubility (amount that will dissolve in 100 grams of water) of three substances at various water temperatures.

As the water temperature is increased from 30°C to 70°C how many more grams of substance A will dissolve in 100 grams of water?

50 g20 g90 g40 g

5. The diagram below shows a factory in the Midwest burning coal the direction of prevailing winds and an area in New York State.

Which statement is best supported by the information shown in the diagram?

The Adirondack Mountains determine the direction of prevailing winds.Acid rain is necessary for forest growth.Human activities can cause pollution.Most rain is caused by factories.

6. Which diagram correctly models the movement of carbon in a food web?

7. Base your answers on the topographic map below which shows the elevation of land in feet above sea level. Points A B and C are locations on the map.

What is a possible elevation of point C?

105 feet95 feet75 feet85 feet

8. The diagram below shows a student making a wet-mount slide.

Why should the student make sure the edge of the coverslip touches the drop of water before setting the coverslip onto the slide?

to clean the slideto reduce air bubblesto increase evaporationto prevent the coverslip from breaking

9. Students designed an experiment using bird feeders with different types of seeds.

For one hour, the students counted the number of birds that ate from each bird feeder. Which question would this experiment most likely answer?

How many seeds can a bird eat?Which kinds of birds eat seeds?Which seeds do birds eat most often?How does a bird find seeds to eat?

10. The diagram below shows a cross section of rock layers in Earth's crust.

The forces shown in the diagram caused the rock layers to

foldformfaultexpand

11. A student swings a ball attached to a string.

The string breaks when the ball is in the location shown. Which arrow best shows the direction of the ball’s motion immediately after the string breaks?

arrow Warrow Xarrow Yarrow Z

12. The illustration below traces the development of the corgi dog over several generations as a result of human activity.

This is an example of the human activity called

selective breedingmutationgenetic engineeringnatural selection

13. Which diagram correctly models the movement of heat, energy and matter in an ecosystem?

14. The diagram shows a three-year pattern of migration for many humpback whales in the Pacific Ocean.

Which statement best communicates the purpose of humpback whale migration?

They migrate to warm southern waters to mate and raise their young and they migrate to Arctic waters to feed.They migrate to decrease the thickness of their insulating fat and increase their muscle mass.They migrate to allow ocean ecosystems to restore their supplies of krill because whales consume so much food.They migrate north in summer to avoid predators and they return south in winter to avoid ice floes.

15. Base your answers on the information and diagram below and on your knowledge of science. During an experiment a strip of magnesium (Mg) metal wrapped around a nichrome (nonreactive) wire is placed in a flask. The nichrome wire outside the flask is insulated. The contents of the flask are sealed off from the environment with a rubber stopper. When the nichrome wire is connected to a battery an electric current passes through the wire causing a white powder called magnesium oxide (MgO) to form.
The flask and its contents had a mass of 120 grams before the experiment and a mass of 120 grams after the experiment. Which conclusion can best be made from these measurements?"

Matter was conserved.New elements were formed.A phase change took place.Energy was destroyed.

16. The drawings below show four animals.

What do all four animals have in common?

They have the same internal structures.They reproduce asexually.They are composed of cells.They have similar means of locomotion.

17. The streaks in the time-lapse photograph below show the apparent motion of the stars around the North Star during one hour.

This apparent motion of the stars can best be explained by Earth's

revolution around the North Starrotation on its axischanging distance from the North Startilted axis

18. The graph below shows the number of known species in the five kingdoms of living things.

Based on the graph which kingdom contains approximately twice as many known species as the Protista Kingdom?

AnimaliaMoneraPlantaeFungi

19. The diagram below shows a Bunsen burner heating a beaker of water on a beaker stand. The arrows represent the transfer of heat energy in the water.

Which process is primarily responsible for the transfer of heat indicated by the arrows in the beaker of water?

convectionradiationconductioncondensation

20. Base your answers on the diagram below which shows a partial food web.

How many organisms in this food web feed on the mice?

4253

21. The data table below shows the mass of an 800-gram block of ice as it melts to a 600-gram block of ice.

If the current rate of melting continues how many more minutes will be required for the 600-gram block of ice to reach a mass of 400 grams?

60301545

22. Base your answers on the diagram below which shows two insulated Styrofoam cups of water connected by an aluminum bar. The thermometers show the temperature of the water in cup A and cup B at the beginning of a heat-flow experiment.

Over the next 15 minutes which changes would most likely occur?

The temperature in cup A will increase and the temperature in cup B will decrease.The temperature in cup A will increase and the temperature in cup B will increase.The temperature in cup A will decrease and the temperature in cup B will increase.The temperature in cup A will decrease and the temperature in cup B will decrease.

23. The diagram below shows a simple microscope. Four parts of the microscope are labeled A B C and D.

Which part of the microscope is used to bring the image of the object on the slide into focus?

CADB

24. Base your answers on the diagrams below and your knowledge of science. The diagrams show liquid water changing to water vapor in four different situations.

Which observation would be evidence that the water is undergoing a phase change?

The water splashes out of the swimming pool.Water soaks into the wet sand.The water level in the glass of water decreases.Waves form on the top of the pond.

25. The diagram below shows tilted rock layers. The dashed lines represent missing parts of the rock layers.

Which process is most likely responsible for the removal of the missing parts of the rock layers?

erosionearthquakesdepositionfaulting