Safety
You must wear this while in the lab.
Safety glass
This is the basic building block of chemistry.
Atom
This state of matter has an indefinite shape and definite volume.
Liquid
The rows (horizontal) in the periodic table are known as this.
Periods
This state of matter has a indefinite shape and indefinite volume.
Gas
Before you begin an experiment, you must do this.
Read the procedure/make sure you have all the components
Aluminum, Lead, and Hydrogen are examples of this.
Elements
Length, color, and volume are examples of this type of property.
Physical properties
This property can be observed without changing the identity of the substances.
The columns (vertical) in the periodic table are known as this.
Groups or families
This property cannot be observed without changing the identity of the substance.
Chemical properties
This person must be in the room when students are working in the lab.
A teacher
These are pure substances that are composed of two or more elements.
Compounds
This type of change occurs during evaporation.
Physical change
These do not shine, not malleable, not ductile, and poor conductors of electricity and heat.
Non-metals
This type of change occurs when you burn paper
Chemical Change
You cannot bring this into the lab setting.
Food and drinks
These are two or more substances in different proportions that can be separated by physical means.
Mixtures
This property depends on the amount of matter.
Extensive
These are also known as semi-conductors
Metalloids
This property does not depend on the amount of matter.
intensive
Report this to the teacher immediately.
Broken equipment or injuries
Gatorade is this type of mixture.
Heterogenous
This term is used to describe an experiment when when heat is released from a reaction
exothermic
The Periodic table was created by this man.
Dmitri Mendeleev
This increases as you move across a period on a periodic table.
atomic mass