Video #3 "Elements and Molecules"

What is the difference between an element and a compound?

What do the individual Lego bricks represent in the video's analogy?

• Molecules

• Compounds

• Atoms

• Mixtures

In the video's analogy, what does each different color of Lego brick represent?

• A molecule

• An element

• A compound

• A mixture

Are you enjoying the video lesson?

• Yes

• No

When two or more atoms are chemically combined, like snapping Lego bricks together, what is formed?

• A mixture

• An element

• A compound

• A solution

What is formed when two or more elements or compounds are physically combined without chemically bonding?

• A compound

• A mixture

• An atom

• A molecule