PMA 3 Review

Nancy placed her cold soda can on a table outside on a warm day. After a while, she noticed water droplets on the outside of the soda can. She wondered where the droplets came from since she never opened the can. Which of the following most likely caused this change?

• Heat was added to the gas in the air.

• Water evaporated from a gas to a liquid.

• Water evaporated from a liquid to a gas.

• Heat was taken away from the gas in the air.

Tags

NGSS.MS-PS1-4

Janice found two seashells when she went to the beach. They appear to be almost the same size, but they have different shapes. How could she figure out if their volume is the same?

• Fill each seashell with water to see if they hold the same amount.

• Place each seashell on a balance to see if they have the same mass.

• Measure the length of each seashell with a measuring tape to see if they are the same length.

• Drop each shell into a graduated cylinder with water to see if they raise the water level equally.

Mr. Rodriguez usually keeps his classroom quiet during the day, but he wonders if his students can solve a puzzle in a shorter amount of time with music playing in the background. He decides to conduct an experiment. On Monday he gives his students a puzzle under normal conditions with no music, and records each student's finishing time. On Tuesday he gives his students the same puzzle, but plays music in the background and records each student's finishing time. Which of the following is the control group in Mr. Rodriguez's experiment?

• the class with no music

• the class with music playing

• the puzzle given to both classes

• the time needed for students to complete the puzzle

Maria stirred salt in water causing the salt to dissolve. She placed the cup of salt water on a windowsill. She observed the cup for ten days. Which of the following would correctly indicate the change that occurred?

• A chemical change because a new substance was formed.

• A physical change because the water condensed leaving the salt behind.

• A physical change because the water evaporated leaving the salt behind.

• A chemical change because the water evaporated leaving the salt behind.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Which of the following describes an example of a material undergoing a chemical change to become another material with different characteristics?

• Iron turns to rust when it is exposed to oxygen.

• When water boils, it turns into vapor, which is a gas.

• Oxygen can become liquid at a very low temperature.

• Gold can be spread out very thin to cover a large area.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of these agents causes both weathering and erosion?

• ice

• plants

• gravity

• temperature change

Tags

NGSS.MS-ESS2-2

Amanda scratched each mineral with her fingernail and recorded her observations in column Y. What should she label column Y?

• Luster

• Streak

• Hardness

• Cleavage

Which rock's description on the rock cards is an inference and NOT an observation?

• gneiss

• granite

• sandstone

• Conglomerate

Tags

NGSS.MS-ESS2-2

Why is it important for a group of scientists to publish their procedures and conclusions from an investigation?

• So other scientists are able to replicate the investigation.

• So other scientists can form an opinion about their investigation.

• So other scientists can copy their original data without replicating the investigation.

• So other scientists know that this question about the natural world has already been answered.

Minerals and rocks are not exactly the same. How are minerals and rocks related to each other?

• Minerals are groups of related rocks.

• Minerals have crystals, but rocks do not.

• Rocks are made up of one or more minerals.

• Rocks contain different chemical compounds than minerals.