Science Unit 1 and 2 review

Observe the two glasses of milk, labeled A and B. (Glass A: 4°C, Glass B: 20°C) Which statement is the MOST LIKELY explanation for the temperature difference between them?

• Glass A has less mass than Glass B.

• Glass A holds less milk than Glass B.

• Glass A was kept in a refrigerator; Glass B was on a kitchen counter.

• Glass A was kept on a kitchen counter; Glass B was inside a freezer.

Tags

NGSS.MS-PS1-4

Observe the rocks in the balance. Which changes would allow the two sides to hold the same mass?

• Add more pebbles to the left pan.

• Add pebbles to the right pan.

• Remove some of the pebbles from the left pan.

• Move some of the pebbles from the left pan to the right pan.

• Take off the rock on the right pan.

Tags

NGSS.5-PS1-2

Which conclusion BEST describes the properties of a magnet?

• Magnets attract all materials, but only within a short distance.

• Magnets only attract objects that have a small mass, such as safety pins.

• Magnets only attract small objects, such as toothpicks.

• Magnets only attract certain materials, including some metals.

Tags

NGSS.MS-PS2-3

Magnets only attract certain materials, including some metals.

• True

• False

Tags

NGSS.MS-PS2-3

Jason lists the properties of an object he is studying. • hard and shiny • smooth texture • attracted to a magnet Which object is he MOST LIKELY describing?

• steel marble

• glass marble

• coins

The table classifies five materials according to whether they sink or float in water.

Which two materials could be added to the first column of the table?

• rubber duck

• penny

• ping pong ball

• beach ball

• pebble

Tags

NGSS.5-PS1-1

Groups of students test objects for magnetism.

Which group correctly classifies the objects as magnetic?

• Group 1

• Group 2

• Group 3

• Group 4

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Brendan classifies six objects into two groups. The table shows his results. What property of matter did Brendan use to classify the six objects?

• mass

• relative density

• magnetism

• temperature

Tags

NGSS.2-PS1-1

What happens to sugar when it is mixed into water?

• The sugar and water combine to form a new substance.

• The sugar breaks apart into tiny pieces that are not sugar any longer.

• The sugar breaks apart into tiny pieces of sugar that spread through the water.

• The sugar either floats to the top of the water or sinks to the bottom.

Tags

NGSS.MS-PS1-2

The teacher stirs a spoonful of green powder into a beaker of water. Which observation provides the strongest evidence that the mixture is a solution?

• The powder releases bubbles in the water, and a layer of foam forms on the surface.

• The powder sinks to the bottom of the beaker, and the water remains clear.

• The powder spreads throughout the water, and the water takes on a uniform pale green color.

• Pieces of the powder swirl around the water before settling to the bottom.