Lab Safety and Techniques
Measurement and Observation
Matter
Physical and Chemical Changes and Properties
Density
100
You should be wearing these over your eyes in the chemistry lab at all times.
What are goggles?
100
The apple weighs 500 grams. This is an example of what type of observation?
What is quantitative?
100
These are the two main categories of matter.
What are pure substances and mixtures?
100
This is a property that is observed when a substance changes into a new substance.
What is a chemical property?
100
This is the definition of density.
What is the amount of mass per unit volume?
200
Identify three safety and emergency devices in this classroom.
What is a fire blanket, fume hood, fire extinguisher, eyewash station, chemical shower, fire exit plan
200
The apple is red. This is an example of what type of observation?
What is qualitative?
200
These are the two categories of pure substances.
What are element and compound?
200
Ice melting into water is an example of this type of change.
What is a physical change?
200
These are two units for volume typically used in density calculations.
What are mL and cm^3?
300
This is what you should do in order to dispose of chemical waste.
What is ask the teacher?
300
Name a unit used to measure volume in the lab.
What is milliliters (mL)?
300
If a substance is capable of being separated by physical means, it would fall under this category of matter.
What is a mixture?
300
Iron rusting is an example of this type of change.
What is a chemical change?
300
Find the density of a substance that has a mass of 5 g and a volume of 2.5 cm^3?
What is 2 g/cm^3?
400
This is what you should use when handling hot objects in the lab
What is hot gloves or tongs?
400
This is what you should do if a measurement is "in between" two lines on the measuring instrument.
What is read out to an additional decimal place?
400
Water is an example of a (element/compound/mixture)
What is a compound?
400
When a substance dissolves, this type of change is occurring.
What is a physical change?
400
Find the mass of a substance that has a density of 0.5 g/mL and a volume of 10 mL.
What is 5 g?
500
Describe what you should do if there is a chemical spill.
What is report the spill to the teacher?
500
When reading volume in a graduated cylinder, you should always go to the bottom of this.
What is the meniscus?
500
A substance that can be observed by the human eye without any aid is referred to as this size of matter.
What is macroscopic?
500
When a yellow substance is created by two clear substances mixing, this type of change has occurred.
What is a chemical change.
500
Find the volume of a substance that has a density of 4.5 g/mL and a mass of 0.25 g.
What is 1.13 mL?
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