Year 9 Chemistry Pre-test

What is an atom made up of?

• Rocks and minerals

• Cells

• Molecules and compounds

• Protons, neutrons and electrons

All atoms contain an equal amount of _____________

• Protons and Neutrons

• Protons and Electrons

• Electrons and Neutrons

All of the food we eat, including meat, begins with the growth of plants.

What is the name of the chemical reaction that produces the glucose that plants produce?

• Combustion

• Respiration

• Photosynthesis

• Digestion

The baking of bread makes use of a chemical reaction involving yeast and sugar.

The same type of reaction is used in brewing to produce alcohol.

What is the name of this chemical reaction?

• Fermentation

• Photosynthesis

• Digestion

• Combustion

What is the element symbol of Carbon?

• Ca

• C

• K

• Cr

How many protons and electrons does a Carbon atom have?

• 6

• 7

• 9

• 10

Which is NOT one of the three states of matter?

• Gas

• Lava

• Solid

• Liquid

The missing word in the blue box is

• Melting

• Freezing

• Evaporating

• Sublimating

Atoms with no overall electrical charge are _____________.

• Positive

• Negative

• Neutral

What does 'K' represent in the periodic table of elements?

• Krypton

• Potassium

• Xenon

• Silver