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WorksheetsChemical/Physical Changes and Atoms
Total questions: 15
Worksheet time: 8mins
A particle made of 2 or more different atoms that are joined chemically is called
compound
molecule
atom
element
A ____________ change happens when the substance does not change.
density
physical
mass
chemical
The atomic number tells you how many __________ are in an atom
atoms
neutrons
elements
protons
An abbreviation that represents an element is called a _____
symbol
element
compound
molecule
A particle made up of 2 or more atoms that are joined chemically are called _______
compounds
molecules
atoms
elements
Melting chocolate is what kind of change?
physical
chemical
Smoke indicates what kind of change?
physical
chemical
A change in temperature indicates what kind of change?
physical
chemical
Ripping paper is what kind of change?
physical
chemical
A _______________ change happens when the substance changes.
density
mass
physical
chemical
Which part of the atom has a negative charge?
neutron
nucleus
electron
proton
Au is the chemical symbol for
iron
copper
gold
calcium
Water is made of hydrogen and oxygen. Is it a molecule, compound, or both
molecule
compound
both
An _____________ cannot be broken down into a substance by chemical means.
element
compound
molecule
apple
In an atom, the nucleus contains _________
electrons and neutrons
electrons and protons
protons and neutrons
only protons
