Scientific Inquiry
Conservation of Mass
Atoms
Periodic Table of Elements
Properties & Changes
100
This is when you explain or interpret the things you observe.
What is inferring or making an inference?
100
Anything that has mass and takes up space.
What is matter?
100
This particle of an atom has a positive charge.
What is a proton?
100
The periodic table was arranged by this when Mendeleev first created it in the 1860s.
What is atomic mass?
100
When elements are chemically combined.
What is a compound or molecule?
200
This observation describes the color of the sky.
What is a qualitative observation?
200
Matter cannot be created nor destroyed.
What is the Law of Conservation of Mass/Matter?
200
This particle of an atom has the least amount of mass.
What is an electron?
200
The modern periodic table is arranged by this.
What is atomic number or the amount of protons?
200
This mixture is evenly colored and the same throughout.
What is homogenous?
300
During the Thinking Like a Scientist Stations Lab, your lab group sorted "random" objects into 3 groups.
What is classifying?
300
Baking soda and vinegar are called this when they are mixed together.
What are reactants?
300
This forms when an atom loses one or multiple electrons.
What is a cation?
300
The vertical columns of the table have similar properties such as level of reactivity.
What are groups or families?
300
Described as an adjective and can include both physical and chemical.
What are properties?
400
During an experiment, this variable is measured by a scientist and graphed on the Y-axis.
What is the responding/dependent variable?
400
In a landfill, materials are breaking down and at the same time new trash is being added. Describe the change of mass to Earth during this process.
What is stays the same?
400
Chemical bonds are formed between atoms when these type of electrons interact.
What are valence electrons?
400
This group of the periodic table reacts violently with water.
What is Group 1 or alkali metals?
400
Evaporation and condensation are examples of this.
What is physical change?
500
The factors that affect the outcome of an experiment.
What is a variable?
500
The Law of Conservation of Mass ideally applies to this type of system.
What is a closed system?
500
Electrons stay away from the protons in an atom's nucleus due to this force.
What is repel?
500
The ability of a metal to be formed into a thin wire?
What is ductile?
500
This change occurs when one or more new substances form.
What is a chemical change?