Grade 9 Science - Chemestry Flashcards
Elemental symbol?
The big acronym bolded in the middle of the box
Atomic number?
The little number at the top of the box
Element name?
The word underneath the symbol
Average atomic mass?
The number at the bottom of the box
Protons?
Same as the atomic number
Electrons?
Same as atomic number
Neutron?
The average atomic mass subtracted by the atomic number
Odour
A fragrance caused by multiple volatilized elements compounded together to create a low concentration of what we perceive an odour
Taste
A sensation of a substance that is perceived through the tung “taste buds”
Clarity
The level pf how much we are able to see through an object also known through ‘transparent’, ‘lucid’, or translucent’
Solubility
The process of changing a solid/liquid/gas into another solid/liquid/gas
Hardness
The level of how hard an object or substance
What does WHMIS stand for
Work Hazardous Material Information Symbol
What does HHPS stand for?
Hazardous
Household
Product
Produts
What’s the difference between an observation and an inference?
An observation is what you notice from the experiment using your 5 senses. While an inference is just an educational guess
Qualitatif?
What you notice just from using the 5 senses
Quantitative?
The measure of what your observing using a certain unit
Matter
Anything that takes ip space
Physical traite?
The specific traits or characteristics of an object/substance
Chemical trait?
The reaction between two substances when combined
What’s the difference between a physical and a chemical change?
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
What are the 3 main indicators that it’s a chemical change?
- odour
- colour
- heat
What are the 2 things needed in a good question?
A dependent and an independent variable
What’s a hypothesis?
An educational guess of what’s going to happen based on previous knowledge of the subject
What are the 3 conjunction that must be in a hypothesis?
If , then, because
