TN Ready Science

The diagram represents a section of Earth that a paleontologist, a scientist who studies fossils, has been working with for years. Which statement correctly describes this diagram?

• Layer W contains fossils of organisms that existed on Earth after the organisms found in layers U and R.

• Layer U contains fossils of organisms that are older than the organisms found in layer R.

• Layers W and U contain fossils that are animal species.

• Layers R and W contain fossils that are both types of plant species.

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

When the solar system was very young, the sun was just being formed and planets had not yet been made. The solar system was mostly gas and dust. Which statement best explains how planets formed in the early solar system?

• Planets formed from magnetism in space that interacted with light from the stars.

• Planets formed from large asteroids that had broken apart.

• Planets formed from molten metal in volcanic eruptions.

• Planets formed from small amounts of debris that were attracted together because of gravity

Tags

NGSS.MS-ESS1-2

Students are using balloons to describe the expanding universe model. The students blow up several balloons and put them on the floor. Each balloon represents a different galaxy. How should the students move or change the balloons to demonstrate how the universe is expanding?

• All of the balloons should be moved to the center of the floor.

• Each balloon should be inflated more so that they are all increasing in size.

• Each balloon should be deflated so that there is more distance between the surface of each balloon.

• All of the balloons should be moved away from each other so there is more distance between them.

Farmers have cultivated five different vegetable crops by artificially selecting for certain traits from the wild mustard plant. This table lists information about five different vegetables that originated from the wild mustard plant. Which statement is correct about the development of these vegetables through artificial selection?

• They resulted from a characteristic of the mustard plant that was changed or enhanced by the selective cultivation.

• They resulted from the exposure to extreme temperatures and ultraviolet sun rays.

• They were created over one generation when crossbreeding took place between two different varieties of vegetables.

• They stopped forming additional varieties at the end of a growth cycle.

Tags

NGSS.MS-LS4-4

What is the primary function of the chloroplasts in plant cells?

• To break down sugar molecules to release energy

• To store water and nutrients

• To capture light energy and convert it into chemical energy

• To control the entry and exit of substances in and out of the cell

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-6

Which of the following is NOT a renewable resource?

• Solar energy

• Wind energy

• Coal

• Hydroelectric power

What is the process by which plants release water vapor into the air through their leaves?

• Condensation

• Transpiration

• Evaporation

• Precipitation

Tags

NGSS.MS-ESS2-4

What is the term for the amount of matter in an object?

• Weight

• Density

• Mass

• Volume

What is the term for the movement of particles from an area of higher concentration to an area of lower concentration?

• Osmosis

• Diffusion

• Active transport

• Endocytosis

Which of the following is a chemical change?

• Dissolving salt in water

• Boiling water

• Burning wood

• Melting ice

Tags

NGSS.MS-PS1-2