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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 |
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