Elements and Compounds

Elements and Compounds

Page 42 to 47

Poll

Attendance

• Present

• Absent

Lesson Objective

At the end of the lesson, students will be able to

•  EXPLAIN the difference between an element and a compound.

Multiple Choice

Is water an element or a compound?

• Element
• Compound

Multiple Choice

Is sugar (C₁₂H₂₂O₁₁) an element or a compound?

• Element
• Compound

Multiple Choice

Carbon is considered an element, while carbon dioxide is considered a compound. This is because carbon dioxide is ---

• a gas at room temperature.

• made of two different elements.

• given off by green plants.

• useful to human beings

Multiple Choice

What is the difference between a compound and an element?

• Compounds are made up of elements and can be chemically separated. Elements cannot be separated.

• Elements make up compounds. Elements can be separated but compounds cannot be separated.

• Elements are found on the periodic table and compounds are found on the dining room table.

Multiple Choice

The oceans are primarily composed of which two elements?

• carbon and hydrogen
• calcium and silicon
• hydrogen and oxygen

Multiple Choice

Compounds have properties different from the elements that make it up.

• Agree

• Disagree

Multiple Choice

NaCl is an example of a compound that contains helium and oxygen atoms.

• Agree

• Disagree