PS.5.1.2

Which is an example of a change that results in a new material?

• melting wax

• cutting paper

• sawing wood

• exploding fireworks

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Raymond was cleaning out his kitchen cupboards. He put a cast iron pan outside with his trash. A week later, he saw the pan had rusted. Which best describes what happened to the pan?

• Permanent change; the rust is new material that formed.

• Temporary change; the rust is new material that formed.

• Temporary change; the reaction was caused by a temperature change.

• Permanent change; the reaction was caused by a temperature change.

Tags

NGSS.MS-PS1-2

Susan is completing an experiment in science. She mixes 1 cup of hot water with 2 cups of salt. What will most likely happen to the substances?

• The substances will blend and their properties will be changed.

• The substances will not blend and their properties will be changed.

• The substances blend and form another liquid that appears as a solid.

• The substances will not blend and their properties will be the same as the individual substances.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Which observation provides evidence that a new substance is formed?

• gas bubbles are formed

• two substances are mixed

• a liquid becomes thicker

• a color becomes more dull

Tags

NGSS.MS-PS1-2

John's father cooks on his outdoor grill by burning wood. John notices that the wood turns into ashes at the bottom of the grill as it burns. John claims that this is a chemical change.

• The ashes are a new mixture.

• The ashes are a different shape.

• The ashes are a new substance.

• The ashes are a different state of matter.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which most likely results in the formation of a new substance?

• rusting a bicycle

• breaking a bottle

• melting an ice cube

• mixing sand into water

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Joe combined a cup of sugar with a glass of hot water. After he stirred the mixture, he could no longer see the sugar. Why did the sugar seem to disappear?

• The water made the sugar evaporate.

• The sugar dissolved in the water and became part of the liquid.

• The sugar particles were filled with water and became transparent.

• The small sugar particles spread away from each other in the water, making them harder to see.

Tags

NGSS.MS-PS1-2

Juan raked leaves and grass clippings into a pile in his yard. Early in the cool mornings, he noticed that the pile had steam rising from it. When he went out to check the pile, he noticed that the leaves and grass clippings had turned brown and looked more like dirt. Which explains what is happening?

• The pile is staying the same.

• The pile is burning and turning to ash.

• The pile is growing new leaves and grass.

• The pile is going through a change and turning to compost.

Tags

NGSS.MS-LS2-3

John and Lisa are conducting an experiment in their science class. They mix a powder with a clear liquid in a beaker and observe the changes. Which observation would most likely indicate that a new substance formed?

• The temperature of the liquid does not change.

• The powder dissolves in the liquid.

• The liquid remains clear.

• A gas is produced.

Tags

NGSS.MS-PS1-2