1. Building Blocks of Matter
Science
Grade 5
Chapter 1

2. Vocabulary Chapter 1 Element Physical property Chemical property Atom
Atomic number
Molecule
Compound
Solution

3. 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

5. Chemical Properties A property
A result of contact with other materials (change or no change)
Description of reaction

6. 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

7. 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

8. 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)

9. Compound H2O Kind of matter Made of more than two types of atoms
Not found in the periodic table
Combination of elements
H2O

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

11. Vocabulary Chapter 1 Element Physical property Chemical property Atom
Atomic number
Molecule
Compound
Solution