Science Practice Test 9

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You’ll face Science section, just like in the real exam.
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1 / 40

Which type of energy transfer warms your hands when held near, but not touching, a fire?

A) Conduction

B) Convection

C) Radiation

D) Fusion

2 / 40

Which natural resource is nonrenewable?

A) Wind

B) Sunlight

C) Oil

D) Water

3 / 40

Which part of the respiratory system exchanges gases with the bloodstream?

A) Trachea

B) Bronchi

C) Alveoli

D) Diaphragm

4 / 40

Which planet rotates on its side?

A) Mars

B) Uranus

C) Venus

D) Jupiter

5 / 40

The phase of the Moon when more than half is lit is called .

6 / 40

The basic unit of life is the .

7 / 40

Energy stored in an object due to its position is called energy.

8 / 40

A change from liquid water to vapor is called .

9 / 40

Earth’s solid outer layer is called the .

10 / 40

The main gas that plants take in for photosynthesis is .

11 / 40

Which steps are part of the scientific method?

A) Forming a hypothesis

B) Collecting data

C) Ignoring unexpected results

D) Drawing a conclusion

12 / 40

Which examples describe conduction?

A) Touching a hot stove

B) Sunlight warming sand

C) Metal spoon heating in soup

D) Warm air rising

13 / 40

Which factors reduce biodiversity?

A) Habitat destruction

B) Pollution

C) Climate stability

D) Invasive species

14 / 40

Which choices describe chemical changes?

A) Fruit rotting

B) Candle burning

C) Ice melting

D) Glass breaking

15 / 40

Which events are caused by tectonic plate movement?

A) Mountain building

B) Earthquakes

C) Cloud formation

D) Volcanic eruptions

16 / 40

Which organisms perform photosynthesis?

A) Algae

B) Pine trees

C) Mushrooms

D) Ferns

17 / 40

Which factors affect the rate of evaporation?

A) Temperature

B) Air movement

C) Humidity

D) Color of container

18 / 40

Which situations demonstrate potential energy?

A) A stretched slingshot

B) A roller coaster at the top of a hill

C) A moving car

D) A rolling marble

19 / 40

Which activities reduce pollution?

A) Recycling waste

B) Burning trash

C) Using energy-efficient lightbulbs

D) Planting trees

20 / 40

Which organisms are decomposers?

A) Bacteria

B) Fungi

C) Snakes

D) Grass

21 / 40

Which force pulls ocean tides toward the Moon?

A) Electricity

B) Magnetism

C) Gravity

D) Friction

22 / 40

Which factor most affects an area’s climate?

A) Daily temperature

B) Latitude

C) Soil minerals

D) Human population

23 / 40

Which process forms metamorphic rock?

A) Melting and cooling

B) Heat and pressure

C) Weathering and erosion

D) Compaction and cementation

24 / 40

Which part of the cell controls activities and contains DNA?

A) Cytoplasm

B) Nucleus

C) Ribosome

D) Cell wall

25 / 40

Shadows form because:

A) Light bends around objects

B) Light travels in straight lines

C) Objects create their own light

D) Heat energy increases

26 / 40

Which change is a physical change?

A) Baking dough

B) Burning gasoline

C) Freezing water

D) Rusting metal

27 / 40

Which planet is known as the “Morning Star”?

A) Mars

B) Venus

C) Saturn

D) Jupiter

28 / 40

What type of energy transformation occurs in a solar panel?

A) Light to electrical

B) Electrical to sound

C) Mechanical to thermal

D) Chemical to light

29 / 40

Which human body system controls all other systems?

A) Circulatory system

B) Digestive system

C) Respiratory system

D) Nervous system

30 / 40

Which tool measures mass?

A) Ruler

B) Balance

C) Thermometer

D) Stopwatch

31 / 40

Which of the following is a renewable resource?

A) Natural gas

B) Coal

C) Wind

D) Oil

32 / 40

Which process allows water to move from plant roots to leaves?

A) Osmosis

B) Transpiration

C) Respiration

D) Fermentation

33 / 40

Which layer of Earth contains the crust and the upper mantle?

A) Outer core

B) Inner core

C) Lithosphere

D) Asthenosphere

34 / 40

Which gas makes up most of the air we breathe?

A) Oxygen

B) Carbon dioxide

C) Argon

D) Nitrogen

35 / 40

Which form of energy is present in the motion of a river?

A) Sound energy

B) Chemical energy

C) Kinetic energy

D) Electrical energy

36 / 40

A student tests whether plants grow faster with music. What is the independent variable?

A) Height of the plants

B) Amount of sunlight

C) Type of music

D) Presence of music

37 / 40

Which type of rock is formed from layers of sediment?

A) Metamorphic

B) Igneous

C) Sedimentary

D) Basalt

38 / 40

Which force opposes motion between two touching surfaces?

A) Gravity

B) Friction

C) Magnetism

D) Electricity

39 / 40

Which change of state occurs when ice becomes water?

A) Freezing

B) Melting

C) Condensation

D) Evaporation

40 / 40

Which organelle is responsible for storing water in plant cells?

A) Nucleus

B) Vacuole

C) Ribosome

D) Chloroplast

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