Lesson 4 Quiz: Which combination of substance produced a gas?

According to Lesson 4, which three substances combine to make the gas we saw in our bath bomb reaction?

• Epsom Salt, Baking Soda and Water

• Baking powder, table salt and citric acid

• Water, baking soda and citric acid

• Citric acid, Baking Soda and Epsom Salt

Zoe is conducting an experiment where she mixes baking soda and vinegar in a beaker. She observes fizzing and bubbles forming as a gas is released. Which statement is true about the gas produced in this experiment?

• The gas is a new substance different from the starting materials.

• The gas is the same as the original solids and liquids.

• The gas is just air trapped in the water.

• The gas is a mixture of the original substances.

Tags

NGSS.MS-PS1-2

Anika is at a science fair and is given several unknown liquids. Which of the following is most useful for distinguishing one liquid from another?

• Its unique properties

• Its shape only

• Its mass only

• Its location only

Tags

NGSS.MS-PS1-2

What does it mean if a substance is highly soluble?

• It can dissolve easily in a liquid

• It changes shape quickly

• It is very dense

• It melts at a low temperature

Jackson is trying to tell two different liquids apart in his science class. Which property would be most useful for him to use?

• The boiling point of the substance

• The color of the container

• The number of bottles on a shelf

• The size of the label

Why must the gas produced in a reaction be a different substance than what we started with?

• Because the starting substances have different properties from the gas bubbles

• Because the gas is always heavier

• Because the gas is always colored

• Because the gas is always a liquid

Tags

NGSS.MS-PS1-2

What does the term "dissolve" mean?

• Dissolve means that the particles in the solid break apart into particles too small to see and mix completely with the water.

• Dissolve means that substances turn into gases when mixed with water.

• Dissolve means that substances sink to the bottom of the container when mixed with water.

• Dissolve means that substances change color when mixed with water.

What can properties of a substance help us do?

• Identify the substance

• Change the substance into a gas

• Make the substance invisible

• Turn the substance into water

Tags

NGSS.MS-PS1-2

When a substance dissolves in water, what happens to its particles?

• They spread out and mix evenly with the water

• They become larger and sink

• They change into a gas immediately

• They float to the top

Tags

NGSS.MS-PS1-2

Hannah tries to mix some sand into a glass of water, but the sand does not dissolve. What does it mean if the sand is insoluble in water?

• It does not mix or break apart in water

• It floats on top of the water

• It changes color when added to water

• It turns into a gas immediately