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WorksheetsFun Chemistry Facts for Kids
Total questions: 15
Worksheet time: 8mins
What is the smallest unit of matter?
Electron
Atom
Quark
Molecule
What do we call a substance made of two or more elements?
Mixture
Element
Solution
Compound
What is the chemical symbol for water?
H2O
H2O3
O2H
H2O2
What is the process called when a solid turns into a gas?
Melting
Condensation
Evaporation
Sublimation
What is the pH scale used to measure?
The color of a solution.
The acidity or alkalinity of a solution.
The temperature of a solution.
The density of a solution.
What is the name of the gas we breathe in?
Oxygen
Carbon Dioxide
Nitrogen
Hydrogen
What is the chemical formula for table salt?
KCl
MgCl2
NaCl
CaCl2
What do we call a reaction that absorbs heat?
Endothermic reaction
Catalytic reaction
Photochemical reaction
Exothermic reaction
What is the main gas found in the Earth's atmosphere?
Carbon Dioxide
Oxygen
Helium
Nitrogen
What is the term for a mixture that has a uniform composition?
Heterogeneous mixture
Homogeneous mixture
Solution
Compound
What is the name of the scientist who proposed the atomic theory?
Albert Einstein
Niels Bohr
John Dalton
Marie Curie
What is the chemical symbol for gold?
Ag
Fe
Au
Pb
What do we call the center of an atom?
nucleus
neutron
electron
proton
What is the process of a liquid turning into a solid called?
Freezing
Condensation
Melting
Evaporation
What is the name of the bond formed when atoms share electrons?
Hydrogen bond
Ionic bond
Covalent bond
Metallic bond
