PHYSICAL/CHEMICAL CHANGES
ELEMENTS
CLASSIFYING MATTER
SAFETY/LAB
MISC/Scientific Figure/Math/Scientific Notation
100
change where matter is not altered in its composition and its properties can still be identified. Only the physical state can be altered.
What is a physical change?
100
Fe is the symbol for this...
What is the symbol of iron?
100
When 2 or more elements are chemically combined.
What is the definition of a compound?
100
This is the most important safety procedure.
What is following directions?
100
The best/awesomest/nicest/helpful/funniest/smartest/coolest science teacher
Who is mrs. Gaon?
200
Changing the physical property of water from a gas to a solid.
What is sublimation?
200
a pure substance that cannot be decomposed by a chemical change.
What is the definition of an element?
200
salt and water are examples of this...
What is a compound?
200
something used to evaporate substances...
What is an evaporating dish?
200
has a density of 1.0g/ml
What is the density of water?
300
Ability to rust is this type of property.
What is a chemical property?
300
Elements are composed and made of this.
What are atoms?
300
Shampoo/milk are an example of this...
What is an example of a colloid/Heterogeneous mixture?
300
a triple beam balance is used for...
how would you measure mass?
300
used to facilitate the writing of numbers in powers of 10
What is scientific notation used for?
400
Frying an egg is this type of change
What is a chemical change?
400
we have 118 of them
how many elements do we have?
400
class of matter cannot be separated/broken down chemically
What is the definition of an element?
400
you use this when a classmate sets himself/herself on fire
When is a fire blanket used?
400
used to express the accuracy of a number, not just its numerical value. ex... 0.02 has 1 of them...
What are significant figures?
500
Matter and energy can neither be created nor destroyed, but may be changed from one form into another.
What is the law of conservation of matter and energy?
500
In nature, there are only 7 of these elements.
how many diatomic elements are there?
500
A uniform mixture of particles at various sizes...
What is a solution?
500
whenever doing a lab, these must always be worn
when do you use safety goggles?
500
the most probable value based on the generally accepted reference...
What is the accepted value?
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