Building Blocks of Matter

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Building Blocks of Matter

• Science
• Grade 5
• Chapter 1

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VocabularyChapter 1

• Element
• Physical property
• Chemical property
• Atom

• Atomic number
• Molecule
• Compound
• Solution

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Element

• Basic kind of matter
• Pure
• Only one type of atoms
• Cannot be broken into smaller pieces by physical
  or chemical processes
• Is in the periodic table

4
Physical Properties

• A property of material
• A description
• You can see, touch, smell, hear
• You can measure it

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Chemical Properties

• A property
• A result of contact with other materials (change
  or no change)
• Description of reaction

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Atom

• Smallest particle of an element that has the same
  properties as the element
• Include protons and neutrons (nucleus) and
  electrons
• Elements are made of one type of atoms

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Atomic Number

• Number of protons in a nucleus
• The number found above the elemental symbol in
  the periodic table
• Each element has a different atomic number
• Single most important
• information of an element

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Molecule

• Smallest part of a substance that has the same
  properties as the substance
• Made from more than one atom
• Can be made from one type of atoms (elements) or
  more two or more types of elements (compounds)

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Compound

• Kind of matter
• Made of more than two types of atoms
• Not found in the periodic table
• Combination of elements

H2O
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Solution

• Mixture
• Can be separated
• Substances are spread out evenly
• Solute will not settle
• Water is a universal solvent

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VocabularyChapter 1

• Element
• Physical property
• Chemical property
• Atom

• Atomic number
• Molecule
• Compound
• Solution