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1st Semester Vocab
Science Vocab
Term | Definition |
---|---|
1st Semester Science Vocab | By: Alex Muffler |
Gloves | Gloves protect your hands when handling chemicals and hot objects. |
Safety Goggles | Goggles protect your eyes from chemical splashes. |
Graduated Cylinder | Graduated Cylinders measure the volume of liquids or an object accurately. |
Triple Beam Balance | Balances measure the mass of an object. |
Density | Density is the mass per unit volume. |
Mass | Mass is the amount of matter in an object. |
Volume | Volume is the amount of space an object covers. |
Proton | Protons are subatomic particles in an atom's nucleus with a positive electrical charge. |
Electron | Electrons are tiny subatomic particles revolving around an atom's nucleus with a negative charge. |
Neutron | Neutrons are subatomic particles in an atom's nucleus with no electrical charge. |
Physical Change | Physical change is a change in shape or state of matter without a chemical change. |
Chemical Change | Chemical change is a change in chemical composition to form a new element. |
Group | Periods are horizontal lines on the periodic table of elements. Elements in a group have the same chemical properties and same number valence electrons. |
Period | Groups are vertical lines on the periodic table of elements. Elements in a period have the same number of electron shells. |
Newton's First Law | Newton's First Law says an object's movement doesn't change unless it is acted on by an unbalanced force. |
Newton's Second Law | Newton's Second Law says the acceleration of an object depends on its mass and the net force on it. |
Newton's Third Law | Newton's Third Law says for every action there is an equal and opposite reaction. |
Unbalanced Force | Unbalanced force occurs when unequal forces act on an object and the object moves. |
Balanced Force | Balanced force occurs when forces acting on an object are equal and the object doesn't move. |
Speed | Speed is the amount of distance traveled per time unit. |