Chemistry progress test questions (Y9)

What happens to atomic size as you go down any group in the periodic table?

• It increases

• It decreases

• stays the same

The number at the bottom of each symbol on the periodic table is the ____________.

• The number of neutrons

• The mass number

• The atomic number

• The number of neutrons + Protons

How can you find the number of neutrons in an atom?

• equal to the mass number

• equal to the atomic number

• equal to the number of electrons

• mass number - atomic number

Tags

NGSS.MS-PS1-1

How can you figure out the number of electrons in an atom?

• equal to the mass number

• equal to the atomic number

• equal to the number of neutrons

The periodic table shows all the different_______________ that exist.

• elements

• compounds

• mixtures

• gases

Which group in the periodic table contains the noble gases?

• group 1

• group 2

• group 3

• group 0

Explain how the fossil fuels natural gas and oil are formed .

• We can manufacture them in factories

• After millions of years underground, the compounds that make up plankton and plants turn into fossil fuels. Plankton decomposes into natural gas and oil.

• They can be made in the labs

• it takes few year for plants and animals to decompose into fossil fuels

Tags

NGSS.MS-ESS3-1

Is soda water (water containing carbon dioxide) an acidic or alkaline or neutral drink?

• acidic

• alkaline

• neutral

Photosynthesis and respiration are both parts of which cycle?

• water cycle

• nitrogen cycle

• carbon cycle

• hydrogen cycle

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is the mantle of the Earth made of?

• Mud

• Dust

• Sand

• Magma