Science Unit 5 Review

What is matter made of according to Lesson 1?

• Atoms

• Particles too small to be seen

• Molecules

• Cells

Tags

NGSS.MS-PS1-1

What inspired the idea of magic potions in stories?

• Wizards

• Alchemists experimenting with chemical reactions

• Scientists

• Chemists

What was the goal of alchemists when experimenting with reactions?

• To create new elements

• To turn ordinary materials into gold

• To make potions

• To discover new metals

How does vinegar make dull pennies shiny?

• By polishing them

• By dissolving the dull layer on the surface

• By painting them

• By scratching them

What common kitchen acid reacts with baking soda to create fizzing?

• Lemon juice

• Vinegar

• Orange juice

• Milk

Tags

NGSS.MS-PS1-5

What are two properties of acids that make them useful for dissolving materials?

• Sweet and sticky

• Sour and reactive

• Bitter and solid

• Soft and smooth

What is the main purpose of chemical reactions in creating new materials?

• To destroy substances

• To create substances with new properties

• To make substances disappear

• To freeze substances

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What gas is released from a vinegar and baking soda reaction?

• Oxygen

• Hydrogen

• Carbon dioxide

• Nitrogen

What does the gas released from a vinegar and baking soda reaction demonstrate?

• Cooling

• Expansion and pressure buildup

• Melting

• Freezing

Tags

NGSS.MS-PS1-2

What is one key factor that causes explosions?

• Light

• Gas buildup and pressure

• Sound

• Heat