There are deep treads on the tyre because they ___________.

increase the stopping distance of the car

reduce the amount of material used

Magnetism is a force of ____________________________ that occurs between two _____________ objects.

attraction or repulsion, magnetic

external or repulsion, electronic

attraction or internal, electronic

What will happen when these magnets are brought close together?

Both magnets will turn to the left

Both magnets will turn to the right

Rina’s mother asked her to help move some items from the hall closet to the garage. One item she wanted to move was a large box of old school books. Rina tried to lift the box, but could not pick it up. What force was Rina NOT able to overcome?

frictional force frictional forcefrictional force

What forces act on a falling feather?

gravity pulling down and friction (air resistance pushing) up

gravity pushing up and friction (air resistance) pulling down

6. An ice cube melts because:

c. Heat is being added and the particles begin to vibrate

On a hot summer day, you make a glass of refreshing sweet iced tea by combining boiling water, tea, sugar, and ice. What type of change occurs and how do you know?

Physical change; sugar dissolves in the tea and water, but the chemical composition remains the same.

Physical change; sugar dissolves in the tea and water which breaks the bonds of the molecules

Chemical change; sugar dissolves in the tea and water due to heat being added to the water

Chemical change; sugar dissolves in the tea and water which breaks the bonds of the molecules

Why is it important to collect data?

in order to share your results with others

This step should be done more than once to ensure accurate results.

clean up after an investigation

A student mixes two clear liquids together. After a few minutes, a white powdery solid can be seen settling on the bottom of the test tube. Which of the following is a conclusion that the student can draw based on these observations? The two clear liquids-

have gone through a chemical change in which a new substance called a precipitate was produced

were pure substances before they were mixed

are toxic and should be handled with extreme caution

have been stored too long and are no longer good

A student added white crystals to a clear liquid. The crystals dissolved in the liquid. After a few seconds, the liquid became quite warm and then turned bright red in color. Indications that a chemical change was taking place could be observed when –

the temperature of the liquid increased and an unexpected color change occurred.

the white crystals were added to the clear liquid.

the crystals dissolved in the liquid leaving only the liquid visible

There are no indications of chemical change

A student places a piece of a potato into a container of hydrogen peroxide. One observation the student makes is that bubbles form around the potato. The presence of bubbles might indicate the formation of a new substance because bubbles -

could show that a gas is forming

always rise to the top of a liquid.

are almost always perfectly spherical.

usually burst after a few minutes.

Luster is ___________

A. the way light is reflected off a surface.

A. how well a piece of matter conducts electricity.

A. the capability of being drawn out into thin wires or threads.

A. the capability of being hammered out thin.

Review Forces, Chemical Changes

Authored by Leticia Martinez

Science

6th Grade

NGSS covered

Used 3+ times

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50 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which has a STRONGER force of gravity, the Earth or the Moon?

Earth

Moon

Tags

NGSS.MS-PS2-5

NGSS.MS-PS2-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What two things determine the gravity of an object?

mass & weight

mass & distance

density & mass

volume & distance

Tags

NGSS.MS-PS2-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When will the forces of gravity between two objects be the GREATEST?

when the masses of both objects are small and the objects are far apart

when the masses of both objects are large and the objects are close together

when the masses of both objects are small and the objects are close together

when the masses of both objects are large and the objects are far apart

Tags

NGSS.MS-PS2-4

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which model has greater gravitational attraction.

Model A

Model B

Model A and B have the same amount of gravitational attraction.

Tags

NGSS.MS-PS2-5

NGSS.MS-PS2-4

NGSS.MS-ESS1-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rougher surfaces have ...

greater friction

less friction

the same level of friction

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Friction is a force that acts in an ___________ direction of movement.

similar

opposite

parallel

west

FILL IN THE BLANK QUESTION

30 sec • 1 pt

If the type of surface is smoother, the distance traveled by the toy car will be___________________

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Review Forces, Chemical Changes

Which has a STRONGER force of gravity, the Earth or the Moon?

What two things determine the gravity of an object?

When will the forces of gravity between two objects be the GREATEST?

Which model has greater gravitational attraction.

Rougher surfaces have ...

Friction is a force that acts in an ___________ direction of movement.

If the type of surface is smoother, the distance traveled by the toy car will be___________________

There are deep treads on the tyre because they ___________.

Friction produces _____________ to keep ourselves warm or to start a fire.

Magnetism is a force of ________________ that occurs between two _ objects.

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Popular Resources on Wayground

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