The diagram shows a duck swimming in a stream in the opposite direction the stream is flowing. The duck pushes against the water, so the water pushes the duck forward with 20 newtons of force. The water also exerts 15 newtons of resistive force against the duck. What statement best describes the resulting motion of the duck?

The duck will continue moving in its current direction

The duck will stop and then start moving again

Which statement best describes the way energy is transferred in an energy pyramid

Radiant energy from the sun is transferred to chemical energy in the algae and lost as thermal energy when organisms move

Solar energy is transferred to mechanical energy in algae and lost as chemical energy when the water boatmen eats

Thermal energy is transferred from the sun to the algae who convert chemical energy into glucose

The kinetic energy of molecules at constant temperature in gaseous state is:

more than those in the liquid state

less than those in the liquid state

less than those in a solid state

The table shows the motion data for two objects during two trials of an investigation. What object travels at the greater average speed?

object 1, because it travels the greater distance per unit of time

object 2, because it travels the longer amount of time

object 1, because it travels the shorter amount of time

A student walks the schoolyard and observes that there are many organisms such as different plants and animals. She notices that moss grows in moist, shady areas but did not see any in the open yard where it's sunny. What is the best explanation for her observation?

Different habitats support different plants and animals.

Schoolyards are the only places where moss can grow.

Schoolyards are not able to sustain living things.

Students make plans to construct an ecosystem in a large aquarium. All 4 plans include soil and water. Which ecosystem will MOST LIKELY be sustainable? WHY?

D- ecosystems with more species are more sustainable

A-fish maintain water quality in the ecosystem

C-ecosystems with fewer species are more sustainable

An ecosystem that is not sustainable can break down when a natural disaster occurs. This can lead to organisms leaving the ecosystem or dying. Increased biodiversity results in a more sustainable ecosystem because-

a greater variety of species present allows more organisms to adapt after the natural disaster

a greater number of plant species means there is less barren land

There are approximately 113 species and subspecies of snakes in Texas. Why would it be important for scientists to use a standardized taxonomic system when naming each species of snake?

To avoid confusion in the identification of a variety of snake species

To ensure that ll species of snakes are located in the fossil record.

To determine the impact of removing one species of snake from their habitt in the ecosystem.

Having a standard taxonomic system benenefits the scientific community by allowing scientists from all over the world to do which of the following?

Have a common understanding in the classification of organisms.

Have a common system for the classificationof locations containing fossils.

Use similar system to classify the impact of removing species from ecosystms.

According to this food web, which organisms would the bobcat and diamondback rattlesnake compete for if the mouse population and swamp rabbit population decreased?

Sparrow and Eastern cottontail rabbit

Raccoon and Eastern cottontail rabbit

Students designed an experiment to model the carbon cycle. The students combined water and carbon dioxide-producing disks in a sealed flask. The flask represented Earth’s atmosphere, and the lamp represented the sun. Which component can be added to the flask to reduce the concentration of carbon dioxide in the model atmosphere created by the disks?

Plants to absorb carbon in the process of photosynthesis

Bacteria to use carbon during nitrification

Snails to use carbon through respiration

Which statement is an example of how carbon moves through a food chain as part of the carbon cycle?

Producers take in carbon dioxide, and consumers release it.

Producers release carbon dioxide, and consumers take it in.

Producers release carbon into the soil, and consumers take it in from the soil.

A correct path that nitrogen could take would be

air -> bacteria -> plants -> animals

air -> animals -> plants -> bacteria

bacteria -> air -> plants -> animals

The table shows the motion data for two objects during two trials of an investigation. Which object travels at the greater average speed?

Object 1, because it travels the greater distance per unit of time

Object 2, because it travels the shorter amont of time

Object 2, because it traves the shortr distance per unit of time

Which statement describes the function of xylem

Transport water from the roots to the stalk

Makes the plant keep its green color

Ensures carbon dioxide is released from the plant

Taxonomist deal with classifying organisms. What is a true statement about how classification works?

The more characteristics an organism has, the easier it is to classify

The older the scientist is, the more he can classify organisms

Organisms with multiple classifications are harder to identify

Asexual reproduction Sexual reproduction creates offspring that will survive better due to its diversity and ability to change evolve over time.

produces genetically identical offspring

Which of these statements are NOT part of cell theory?

Cells replicate only if they are protecting an organism

All cells come from pre-existing cells

All living things are made of cells

Cells are the basic unit of life

When baking soda and vinegar react, the surface bubbles. What does this indicate?

A chemical change, because a gas is being formed

A chemical change, because a precipitate is being formed

A non- chemical change because a gas is formed

Which are reasons for an animal adaptation (select all that apply)

Defense against a predator (camouflaged/stink spray)

Availability of food sources (giraffe neck/bird beak)

1 semester MOY review

Authored by Jacqualine D Jones

Science

7th Grade

NGSS covered

Used 42+ times

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50 questions

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MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Element or compound?
H₂O

element

compound

Tags

NGSS.MS-PS1-1

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Which of the following is a compound?

O₂

CO₂

Tags

NGSS.MS-PS1-1

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which is the correct formula for:
three hydrogen (H)
one sulfur (S)
four oxygen (O)

H₃SO₄

HSO₄

H₄S₃O

Tags

NGSS.MS-PS1-1

LABELLING QUESTION

1 min • 1 pt

Label the image

solvent

solution

solute

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

MULTIPLE SELECT QUESTION

45 sec • 1 pt

What factors affect the rate of dissolving? (check all that apply)

temperature

buoyancy

particle size

agitation

MATCH QUESTION

1 min • 1 pt

Match the following

convection

conduction

radiation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

NGSS.MS-PS3-3

DRAG AND DROP QUESTION

1 min • 1 pt

The image is representing (a) equilibrium. This is where (b) and (c) meet to become (d)

thermal

freeze

cold temperatures

hot temperatures

boil

the same

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

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