Year 8 revision introduction to periodic table

Which of the following represents an element?

• H₂O
• H₂
• NaCl
• CaCO₃

Salt has a chemical formula of NaCl.  Salt is a...

• Compound
• Element
• Mixture
• None of the Above

Tags

NGSS.MS-PS1-1

What is made up two or more elements that are chemically combined?

• Element
• Mixture
• Compound
• Solids

Tags

NGSS.MS-PS1-1

How many elements are represented in the compound?
Na₂CO₃

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1

A combination of substances that are not chemically combined is called a(n)____________. 

• mixture
• compound
• physical

An element is made up of only one kind of _____.

• isotope
• plastic
• atom
• metal

Tags

NGSS.MS-PS1-1

_____ small particles that make up most types of matter on Earth.

• compounds
• atoms
• mixtures
• elements

Tags

NGSS.MS-PS1-1

In general, metals are _____. 

• poor conductors of heat
• brittle
• poor conductors of electricity 
• good conductors of heat

Tags

NGSS.MS-PS3-3

What is H₂SO₄ 
 made up of?

• 2 hydrogen, 1 sulfur, 4 oxygen
• 1 hydrogen, 2 sulfur, 4 oxygen
• 2 hydrogen & 4 sodium
• 1 hydrogen & 6 sodium

Tags

NGSS.MS-PS1-1

Classify the picture with the correct label.

• Element
• Compound
• Mixture of Elements
• Mixture of Compounds

Tags

NGSS.MS-PS1-1