Science Post Test 2

The substance in Figure 3 is best described by which of the following?

• Suspension

• Mixture

• Gas

• Liquid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

How should Kate complete her unfinished model?

• Kate should draw particles far apart and moving freely to show thermal energy being added to a liquid.

• Kate should draw particles far apart in a fixed position to show thermal energy being removed from a liquid.

• Kate should draw particles close together in a fixed position to show thermal energy being added to a liquid.

• Kate should draw particles close together and moving freely to show thermal energy being removed from a liquid.

Tags

NGSS.MS-PS1-4

Water molecules move the slowest at which temperature?

• 0 degrees Celcius

• 32 degrees Celcius

• 100 degrees Celcius

• 212 degrees Celcius

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

If X is in the gas state, what will most likely happen when the lid is removed from the container?

• The particles of gas X will flow from the container and spread out into the surroundings.

• The particles of gas X will flow from the container and travel down the side to the table.

• The particles of gas X will remain in the container and move with greater speed.

• The particles of gas X will remain in the container and move closer together.

When a physical or chemical change occurs, the law of conservation of mass always applies. What happens to atoms during a chemical change, according to this law?

• Atoms are created.

• Atoms are destroyed.

• Atoms are rearranged.

• Atoms are bonded.

Tags

NGSS.MS-PS1-5

Select all of the reactants in this reaction.

• iron

• copper

• copper (II) sulfate

• iron (II) sulfate

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Which choice shows a balanced chemical reaction that supports the law of conservation of matter?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

In order to balance the scale, how many pieces of the cut-up apple should she place on the pan?

• 1

• 2

• 3

• 4

Tags

NGSS.3-PS2-1

What type of energy is powering the toaster?

• electrical energy

• heat energy

• mechanical energy

• sound energy

Tags

NGSS.MS-PS3-5

In an engine, fuel and oxygen chemically react and release energy. What happens to the energy NOT used by the engine?

• It has been destroyed.

• It is lost in the form of heat and sound.

• It remains stored in the chemical bonds of the fuel.

• It is converted into methane.

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4