MYA Science Review Part 2

A student uses a graphic organizer to show the characteristics of an object in our Solar System. Which of the following objects accurately completes the graphic organizer?

• asteroid

• comet

• moon

• planet

Solder is a silver metal used to hold pipes together. When the solder is heated, it melts and acts as a type of metal "glue." Mrs. Hanley heats a piece of solder until it melts between two pipes. What best identifies the point at which a physical change first takes place?

• when the solder cools down

• when the solder melts

• when the solder is a soft metal

• when the solder becomes solid again

Tags

NGSS.MS-PS1-4

Thomas is making tea. He adds sugar to water and stirs for a minute, but most of the sugar doesn’t dissolve. Which of the following could Thomas do to make the sugar dissolve more quickly?

• heat the water

• add more sugar

• stir more slowly

• use a smaller cup

Tags

NGSS.MS-PS1-4

Jessim wants to help Nancy understand the movement that happens during one Earth year. Jessim holds a small globe representing Earth, and Nancy holds a large ball representing the Sun. What should Jessim do to show Nancy what happens during one Earth year?

• Jessim should not move except to slowly spin the globe.

• Jessim should slowly spin the globe and walk away from Nancy.

• Jessim should have Nancy walk around him while spinning the ball.

• Jessim should spin the globe quickly while walking in a circle around Nancy.

Tags

NGSS.MS-ESS1-1

Tonya and Mario are asked to use a pan balance to find the mass of the same rock. Tonya finds the rock's mass to be 680 grams. Mario finds the rock's mass to be 672 grams. Which is the best explanation for the difference in their measurements?

• Either Mario or Tonya measured the mass of the rock incorrectly on the pan balance.

• The rock was cold when Tonya measured its mass and hot when Mario measured in mass.

• The rock changed in size between the time Tonya measured it and the time Mario measured it.

• The rock broke before Mario measured it. So the mass of the two pieces together was less than when Tonya measured it.

What kind of weather would be expected if cirrus clouds are in the sky?

• Cirrus clouds form when it is going to turn cold.

• Cirrus clouds mean fair weather is ahead

• Cirrus clouds come before strong winds.

• Cirrus clouds appear just before storms form.

Tags

NGSS.MS-ESS2-5

As human populations grow, it becomes more important to use renewable sources of energy. Which of the following objects uses energy from a renewable source?

• a stove that is powered by natural gas

• a refrigerator that runs on solar power

• a lantern that burns oil from beneath Earth's surface

• a toaster that uses electricity from a coal-burning power plant

Tags

NGSS.MS-ESS3-4

Different energy sources can be used to generate electricity. Which of the following uses a nonrenewable energy source to generate electricity?

• a power plant that runs on oil

• a hydroelectric power plant

• a generator that burns wood

• a windmill connected to a generator

Yardangs are tall, broad peaks that appear in deserts. Weathering and erosion work together to form yardangs. They are produced by wind that carries dust or sand. The gritty wind wears away the soft rock of a cliff, leaving a shape like the one seen here. What are the agents of weathering and erosion that form yardangs?

• wind picking up sand from the desert

• wind and sand wearing away the rock face

• rock particles falling to the base of the yardang

• loose particles from the cliff blowing to new parts of the desert

Tags

NGSS.MS-ESS2-2

Jorge and Ruchi are trying to determine the identify of two minerals given to them by their teacher. What method would help them to do this?

• Try to scratch the samples with a sharp piece of quartz

• Hold a sample on each hand and determine which has more mass.

• Place the samples in boiling water and compare the color of the water.

• Drop the samples and compare the time it takes for them to reach the ground.