Review

Mark looks at the clouds in the sky and decides that he does not need to take his umbrella with him today. Which clouds did Mark most likely see in the sky?

• cirrus

• nimbostratus

• cumulonimbus

Tags

NGSS.MS-ESS2-5

Which weather condition will most likely occur when the atmospheric pressure in an area begins falling?

• dry

• cold

• rainy

• sunny

Tags

NGSS.MS-ESS2-5

A meteorologist predicts that a cold front and a high pressure system will arrive later in the day. Which type of cloud will most likely appear as a result?

• fog

• stratus

• cumulus

• cumulonimbus

Tags

NGSS.MS-ESS2-5

A student fills two large bowls, A and B, with 500 mL of water each. He adds 115 g of salt to Bowl A and allows the salt to dissolve completely. He places an egg in Bowl B and observes that the egg sinks. The student then places the same type of egg in Bowl A and observes that the egg floats. What can be correctly concluded from the observation?

• Salt decreases the mass of water

• Salt increases the density of water

• Salt decreases the volume of water

• Salt increases the temperature of water

A student makes a partial circuit by connecting a battery with a light bulb using wires. The student then completes the circuit using different materials to check if the light bulb glows, as shown in the setup and table. Which material can be classified as an electrical conductor?

• iron paper clip

• plastic spoon

• rubber band

• strand of wool

Tags

NGSS.MS-PS2-3

A student conducts a scientific investigation to determine which items have densities greater than water. The student knows that if an item has a density greater than water, it will sink. The student drops four different items into a beaker of water and records the outcomes in a table.

What conclusion can the student make based on the data collected?

• All of the items have densities greater than water

• Water has a greater density than all of the items

• The rock and the penny have greater densities than water

• The water is less dense than the birthday candle and the corn kernel

Tags

NGSS.MS-PS1-2

A student fills a beaker with 500 mL of water. The student drops an iron nail in the beaker followed by a piece of foam, as shown. Which choice correctly orders the materials from least to most dense?

• iron, water, foam

• water, iron, foam

• foam, iron, water

• foam, water, iron

Tags

NGSS.MS-PS1-2

A student places four same-sized blocks (P,Q,R,S) made of different materials in a beaker with water. The student observes what happens to each block and makes a list of conclusions. Which conclusions are correct?

• 1 and 2

• 1 and 3

• 2 and 4

• 2 and 3

Tags

NGSS.MS-PS1-2

The table contains information about the densities of objects and what happens when the objects are placed in water. A student has an object with a density of 1.75 g/cm³. Using the data from the table, what will happen when the object is placed in water, and why?

• The object will float because it is less dense than water

• The object will float because it is more dense than water

• The object will sink because it is less dense than water

• The object will sink because it is more dense than water

A student adds ice cubes to a bowl and places the bowl on a tabletop for 10 minutes. The student records the properties of the substance at the start and after 10 minutes in a table. Which statement best explains the state of the substance after 10 minutes?

• It is a solid because the mass did not change

• It is a gas because the temperature increases

• It is a liquid because the mass remained the same

• It is a liquid because it took the shape of the bowl

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4