Properties and changes
This describes how a substance can be measured or observed.
physical property
Gold is an example of this category of matter
Pure substance
Crushing a can is an example of this type of change
physical change
I should not bring any of these items into class especially not at the lab tables because it could get contaminated and cause harm to my body.
Food or drink
an observation of the ABILITY of matter to change into a NEW substance.
chemical property
Pizza is an example of this category of matter
Mixture
flammability is an example of this
chemical property
In the lab what should you do if you break a beaker or other glass container
Tell the teacher and let them handle cleaning the mess
when the identity of the substance does NOT change.
Physical change
Diatomic refers to 2 of the same type of atom that is bonded together but is still defined as this
Element
Melting point is an example of this type of property
physical property
What is the most important thing you should do before starting a lab in class
Read the instructions
When one or more substances combine or break apart to form new substances
chemical change
This substance can be separated but looks as though it is only one type of matter even under a microscope
homogenous mixture
Food digesting in your stomach is an example of
chemical change
What are 2 emergencies that would warrant pressing the big red button
name 4 of the 6 identifiers that a chemical reaction occurred
A change in color
A change in odor
Light given off
The production of bubbles (gas)
A change in temperature
Formation of a new substance (precipitate)
All organic matter that is or was once living is classified as this type of matter
Heterogenous mixture
Name the 3 physical properties that are chemical changes
Color, odor, and taste
Name 2 safety procedures that you should follow when working with an open flame.
some examples include tying back hair, no horseplay, and monitoring the fire at all times.