Grade 9 Science - Chemestry

Question 0

Elemental symbol?

Answer 0

The big acronym bolded in the middle of the box

Question 1

Atomic number?

Answer 1

The little number at the top of the box

Question 2

Element name?

Answer 2

The word underneath the symbol

Question 3

Average atomic mass?

Answer 3

The number at the bottom of the box

Question 4

Protons?

Answer 4

Same as the atomic number

Question 5

Electrons?

Answer 5

Same as atomic number

Question 6

Neutron?

Answer 6

The average atomic mass subtracted by the atomic number

Question 7

Odour

Answer 7

A fragrance caused by multiple volatilized elements compounded together to create a low concentration of what we perceive an odour

Question 8

Taste

Answer 8

A sensation of a substance that is perceived through the tung “taste buds”

Question 9

Clarity

Answer 9

The level pf how much we are able to see through an object also known through ‘transparent’, ‘lucid’, or translucent’

Question 10

Solubility

Answer 10

The process of changing a solid/liquid/gas into another solid/liquid/gas

Question 11

Hardness

Answer 11

The level of how hard an object or substance

Question 12

What does WHMIS stand for

Answer 12

Work
Hazardous 
Material
Information 
Symbol

Question 13

What does HHPS stand for?

Answer 13

Hazardous
Household
Product
Produts

Question 14

What’s the difference between an observation and an inference?

Answer 14

An observation is what you notice from the experiment using your 5 senses. While an inference is just an educational guess

Question 15

Qualitatif?

Answer 15

What you notice just from using the 5 senses

Question 16

Quantitative?

Answer 16

The measure of what your observing using a certain unit

Question 17

Matter

Answer 17

Anything that takes ip space

Question 18

Physical traite?

Answer 18

The specific traits or characteristics of an object/substance

Question 19

Chemical trait?

Answer 19

The reaction between two substances when combined

Question 20

What’s the difference between a physical and a chemical change?

Answer 20

A physical change is just the change of the substances physical state its chemical state stays the same and its usually reversible. While a chemical change’s chemical state of a substance changes and is irreversible

Question 21

What are the 3 main indicators that it’s a chemical change?

Answer 21

• odour
• colour
• heat

Question 22

What are the 2 things needed in a good question?

Answer 22

A dependent and an independent variable

Question 23

What’s a hypothesis?

Answer 23

An educational guess of what’s going to happen based on previous knowledge of the subject

Question 24

What are the 3 conjunction that must be in a hypothesis?

Answer 24

If , then, because