A sample of the element copper is divided into the smallest particles possible such that each particle is still copper. Each particle can best be described as

• An atom

• A molecule

• A nucleus

• An electron

Tags

NGSS.MS-PS1-1

Which of the following statements about thermal energy is true?

• As you hold a cup of hot water your hands cool the water.

• As you hold a glass of cold milk, the cold travels to your hand.

• As you hold a cup of cold milk, your hand cools the milk.

• As you hold a cup of hot water, the heat moves to your hand.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

In what order are the sun, moon, and Earth during a total lunar eclipse?

• Earth-Moon-Sun

• Earth-Sun-Moon

• Moon-Sun-Earth

• Moon-Earth-Sun

Tags

NGSS.MS-ESS1-1

Earth is made of different layers that have varying characteristics. Which is the thickest layer?

• The mantle

• The inner core

• The outer core

• The crust

A student was asked to make a diagram showing a subduction zone where an oceanic crust and continental crust collide. Which geologic feature should she include at the subduction zone?

• Island

• Plateau

• Rift

• Trench

Tags

NGSS.MS-ESS2-2

Some plants grow in an area where there are many leaf-eating animals. Having which feature would best help the plant survive around the leaf-eating animals?

• Large fruit

• Long stems

• Sharp thorns

• Colorful flowers

Tags

NGSS.MS-LS4-4

Students kept some crickets in a tank. It was kept in an area where it would get several hours of sunlight a day. It contained one area with water, and another with soils where plants were growing. From which source did the crickets gain all of their energy?

• The soil

• The water

• The plants

• The sunlight

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of these factors affect how fast a sound wave moves?

• The kind of material it is moving through

• The amplitude of the sound wave’s vibrations

• The wavelength of the disturbance in the medium

• The type of motion that caused the sound wave to form

Tags

NGSS.MS-PS4-2

A student has two solid samples of the same substance. Which property do the substances most likely have in common?

• Density

• Mass

• Shape

• Volume

Which diagram correctly shows when it is winter at Point X?

• A

• B

• C

• D

Tags

NGSS.MS-ESS1-1