_________ is anything that takes up space and has mass.

A. Matter
B. Gravity
C. Energy
D. Plasma

All matter is made of ___________?

A. Air
B. Water
C. Vibrations
D. Atoms

What are considered the building blocks of matter?

A. Molecules
B. Protons
C. Elements
D. Atoms

What are the three subatomic particles of an atom?

A. Protons,neutrons & electrons
B. Protons,nucleus & electrons
C. Protons,nucleus & elements.
D. Elements,nucleus & protons

The protons and neutrons are found in the center of the atom, which is called the _________of the atom?

A. Nucleus
B. Headquarters
C. Hub
D. None of these

___________are negatively (-) charged particles of an atom?

A. Protons
B. Neutrons
C. Electrons
D. None of these

____________ have no charge?

A. Neutrons
B. Protons
C. Electrons
D. None of these

Elements are made of _________?

A. Atoms
B. Molecules
C. H2o
D. Compounds

_____________ are positively (+) charged particles?

A. Neutrons
B. Electrons
C. Protons
D. None of these

SI unit of time is_________?

A. Second
B. Kilo gram
C. Meter
D. Volt