Science End of Year Review

Why does it usually take desert cacti longer to recover from a fire than it does for wildflowers in a meadow?

• Desert cacti grow more slowly than wildflowers.

• Wildflowers produce seeds with a seed coat for protection.

• There are more desert animals eating the young cacti plants.

• There are more wildflowers in a meadow than cactus plants in a desert.

Tags

NGSS.MS-LS1-5

The illustration shows a transverse wave. Which bar measures the wavelength of the wave?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS4-1

The image shows two processes. Which statement best compares the processes?

• They both form a new atom.

• They both form a new molecule.

• Process 1 forms a new molecule, and Process 2 forms a new atom.

• Process 1 forms a new atom, and Process 2 forms a new molecule.

Tags

NGSS.MS-PS1-1

A beaker contains a liquid and an object. What must be true regarding the liquid and the object in the beaker?

• The liquid is denser than the object.

• The object is denser than the liquid.

• The object has more mass than the liquid.

• The liquid has more mass than the object.

What type of energy is transmitted from the Sun to Earth through space?

• Heat energy

• Kinetic energy

• Electrical energy

• Electromagnetic energy

The picture shows a model of the internal structure of Earth. Which evidence best supports this model?

• Evaluations of seismic data

• Direct observations of the layers

• Samples of rock from the layers

• Explanations of the rock cycle

Tags

NGSS.MS-ESS1-4

This illustration shows a sound wave traveling from a tuning fork through a medium. What parts of the wave are labeled X and Y?

• X = compressions; Y = rarefactions

• X = rarefactions; Y = compressions

• X = compressions; Y = wavelength

• X = rarefactions; Y = wavelength

Tags

NGSS.MS-PS4-1

A student has a beaker with 50 mL of water in it. A rock is placed in the beaker causing the water level to rise. The students measures the new water level and subtracts 50 mL. Which property of the rock is being measured?

• Mass

• Length

• Weight

• Volume

About how long is a lunar cycle?

• 1 day

• 1 week

• 28 days

• 52 weeks

Tags

NGSS.MS-ESS1-1

A student uses clay to build models of an ocean plate and a continental plate. What characteristic cannot be accurately represented by the models?

• The shapes of the plates

• The relative sizes of the plates

• The relative densities of the plates

• The arrangement of plates relative to one another