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5th Unit B Chapter 1
Classifying Matter
Q | Answer |
---|---|
Most of the mass of an atom is in the | nucleus |
A change that produces new substances with new properties is called a | chemical change |
An ____________ is a particle in an atom that has a negative charge. | electron |
In a ____________, the parts are spread out evenly. | solution |
An _______________ is made up of only one kind of atom. | element |
A ____________ is a particle in an atom that has a positive charge. | proton |
You can use your senses to observe a ______________ of a substance. | physical property |
Sand and iron fillings together can make up a ______________ | mixture |
Elements are classified in the _______________. | periodic table |
Melting ice is an example of a _________________. | physical change |
One step in a series of steps that take place in a chemical change is a _________________. | chemical reaction |
The particle of an atom that has no charge is a ________________. | neutron |
The smallest particle of an element is an ________. | atom |
When two or more atoms that are alike or different combine, they can form a ______________. | molecule |
A substance that forms when two or more different kinds of atoms combine is a _______________. | compound |
A ___________________ of a substance indicates how it reacts with other substances. | chemical property |