A characteristic that can be observed without changing the object into a new substance, like its color, shape, texture, density, melting point, or state.
What is physical property?
100
A solution of salt water is an example of a _______ mixture.
What is homogeneous?
100
An element is matter made up of only one type of _____.
What is atom?
100
The name for rows in a periodic table
What are periods?
200
On a table is rock and a graduated cylinder filled with water. What physical property can these supplies be used to measure?
What is volume?
200
A chemical change creates a new object with new _______ .
What are properties?
200
A compound is a molecule that contains two or more ______ .
What is elements?
200
discovered the atom and named it
What is Democritus?
200
Elements that are shiny, malleable, ductile, good conductors of heat and electricity and make up most of the periodic table
What are metals?
300
the tool used to measure weight
What is a scale?
300
(1) A man cuts a branch off a tree. (2) The leaves on the branch turn brown. (3) The branch rots and turns into dirt. Which parts are physical or chemical changes?
1 - physical, 2 - chemical, 3 - chemical
300
C is the element _______ for Carbon.
What is symbol?
300
location of the protons and the neutrons
What is nucleus?
300
The elements located in groups 3-12
What are transitional metals
400
the formula for volume of a regular object
What is L x W x H
400
What happens to the particles of a gas when it cools to a liquid?
What is the particles slow down?
400
H20 is the ________ _________ for water.
What is chemical formula?
400
The atomic number is the number of ______ in the atom.
What is protons?
400
The elements located between the metals and nonmetals?
What are the metalloids?
500
The formula for density
What is mass/ volume?
500
The ability to see your warm breath on a cold day.
What is condensation?
500
NaHCO3...#elements, #atoms, molecule, compound
What is 4 - 6 - yes - yes
500
An atom with the same number of protons but a different number of neutrons