Structure and Properties of Matter

The diagram below shows the sun, Earth, and the moon.

What event is being shown in the diagram?

• a solar eclipse

• a lunar eclipse

• winter solstice

• summer solstice

Tags

NGSS.MS-ESS1-1

Which agricultural method is most effective in returning nutrients to the soil?

• terracing

• crop rotation

• no-till farming

• planting cover crops

What are the products of photosynthesis?

• sugar and oxygen

• chlorophyll and DNA

• sugar and chlorophyll

• carbon dioxide and water

Tags

NGSS.MS-LS1-6

Iron can exist as a solid or a liquid. Which statement best compares solid iron and liquid iron?

• Solid iron and liquid iron have the same type of atoms.

• Solid iron and liquid iron have different types of atoms.

• Solid iron is an element, and liquid iron is a compound.

• Liquid iron is an element, and solid iron is a compound.

Tags

NGSS.MS-PS1-1

Two identical beakers containing water, which have not yet been placed in the sun, are shown below.

If both beakers are placed outside, in the sun, for the same amount of time, what effect will the sun have on the water in each beaker?

• The water in beaker Y will heat faster because the volume of the water is greater.

• The water in beaker Y will heat faster because the density of the water is greater.

• The water in beaker X will heat faster because the density of the water is lower.

• The water in beaker X will heat faster because the volume of the water is lower.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which statement describes the atoms of an element?

• They can be seen with a magnifying glass.

• They have different sizes and shapes.

• They have mass and volume.

• They are weightless.

Which term describes a pure substance that is composed of only one type of atom?

• element

• matter

• mixture

• solution

How are a 10-gram sample of solid gold and a 50-gram sample of solid gold different?

• They have different colors.

• They have different volumes.

• They have different densities.

• They have different melting points.

Joe saws a wooden board into two pieces. Which statement is true regarding the properties of the resulting pieces?

• The mass of each piece is the same as the mass of the original board

• The weight of each piece is the same as the weight of the original board.

• The density of each piece is the same as the density of the original board.

• The volume of each piece is the same as the volume of the original board.

The illustration below shows two cubes.

If both are dropped into a container of water, at the same time, which will sink faster?

• Both will sink at the same rate because they have the same density.

• Both will sink at the same rate because they have the same weight.

• Copper will sink faster because it is denser.

• Iron will sink faster because it is denser.

Tags

NGSS.MS-PS1-2