7th Grade 2nd Semester Test

Which of the following is an example of a producer in an ecosystem?

• Grass

• Rabbit

• Hawk

• Mushroom

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

What is the main function of decomposers in a biome?

• Produce food using sunlight

• Break down dead organisms

• Hunt for prey

• Store water

Tags

NGSS.MS-LS2-3

Which of the following is a sign that a chemical reaction has occurred?

• Change in shape

• Change in color

• Change in size

• Change in location

Tags

NGSS.MS-PS1-2

What is the unit of force in the metric system?

• Joule

• Newton

• Watt

• Meter

What is the chemical symbol for water?

• NaCl

Tags

NGSS.MS-PS1-1

Which force pulls objects toward the center of the Earth?

• Magnetism

• Gravity

• Friction

• Electricity

Tags

NGSS.5-PS2-1

Which of the following best describes a food web?

• A single line of energy flow

• A network of interconnected food chains

• A list of all producers

• A group of the same species

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

If a population of rabbits in a grassland biome suddenly decreases, what is a likely effect on the fox population that preys on them?

• Fox population increases

• Fox population decreases

• No change in fox population

• Foxes become producers

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following is an example of a physical change, not a chemical reaction?

• Burning wood

• Melting ice

• Rusting iron

• Baking a cake

A student mixes vinegar and baking soda and observes fizzing and bubbling. What does this indicate?

• A physical change occurred

• A chemical reaction occurred

• No change occurred

• Only a temperature change occurred

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5