Physical Properties of Matter Review

In the past twenty-five years, how have scientists and engineers helped increase the global food supply?

• They have explained that farm crops need sunlight, water, and soil.

• They have passed laws that change how food is shared around the world.

• They have convinced farmers to grow foods that people want to eat.

• They have developed new kinds of farm crops that resist pests.

Tags

NGSS.MS-ETS1-1

Zoe is researching online to learn about science and careers in science. Which website is most likely to present only useful, reliable information?

• a website where fourth graders can ask questions and receive answers

• a website that allows kids and adults to share videos and photos

• an online encyclopedia that allows anyone to post articles

• the website of a large science museum in Washington, D.C.

Paula and the other students in science class are wearing safety goggles during an investigation. When should Paula remove the goggles she is wearing?

• when she finishes handling materials that could damage her eyes

• when she decides that goggles are no longer needed

• when her teacher says to take off the goggles, or when she leaves the classroom

• when she is writing in her laboratory notebook

A team of engineers is designing a new airplane. What is the advantage of building a model on a computer instead of building an actual working model?

• The computer model can show all outside parts of the airplane, including the wings, body, and tail

• The computer model can be tested more easily.

• The computer model can be changed or revised more easily.

• The computer model can represent the whole airplane, not just parts of it.

Tags

NGSS.MS-ETS1-4

A scientist wants to use a liquid called acid in an experiment. Which tool would be most useful for measuring the volume of the acid?

• a graduated cylinder

• a pan balance

• an electric scale

When should a scientist wear safety gloves?

• when handling hot objects, such as a beaker that is heated on a hot plate

• when pouring liquids that could stain skin or clothes

• when lifting heavy objects, such as a wooden crate

Why is a pencil classified as a solid, instead of as a gas or a liquid?

The reason is that a pencil __________ its size and shape when it is moved to a new location.

Word Bank: change, keeps

Observe the two glasses of milk, labeled A and B. Which statement is the most likely explanation for the temperature difference between them?

• Glass A has less mass 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

NGSS.MS-PS3-4

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

Select THREE correct answers.

• Add more pebbles to the left pan.

• Add pebbles to the right pan.

• Remove some of the pebbles from the left pan.

• Add two identical pebbles to both pans.

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

Larissa is using a balance to measure the mass of an apple. The illustrations show her first and second attempts. Which conclusion about the mass of the apple is most strongly supported by the results?

• The mass of the apple is greater than 90 grams

• The mass of the apple is between 80 and 90 grams.

• The mass of the apple is most likely 85 grams.

• The mass of the apple is either 80 grams or 90 grams