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One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
Answer to place stones and capture territory.
Outrun the snow together.
Earn blasts, then hunt the other team.
Answer to earn energy, then climb.
The class blasts through walls together.
Bid on mystery lots. Most money wins.
Sell tours. Nice, standard, or a total scam.
Answer, restock, and serve the rush.
More correct answers pulls the rope your way.
Answer, then shoot down the alien wave.
Answer, then tap to leap the frozen ridge.
Which of the following is anything that has mass and occupies space?
Which statement best describes an element?
What determines the identity of an element?
Which of the following is a compound?
What type of bond involves the sharing of electrons between nonmetals?
A pure substance has a fixed chemical composition.
Elements can be broken down into simpler substances through ordinary chemical means.
A compound contains two or more different elements chemically combined in a fixed ratio.
A molecule may contain atoms of the same element or different elements.
Ionic bonding involves the transfer of electrons.
The __________________ is the number of protons in the nucleus of an atom.
A __________________ is a group of two or more atoms bonded together.
A __________________ is a pure substance made of two or more different elements chemically combined in a fixed ratio.
A __________________ occurs when atoms share electrons.
What do you call a molecule made of atoms of the same element, such as O₂ or N₂?
What do you call a molecule made of atoms of different elements, such as H₂O or CO₂?
What type of compound is formed through the transfer of electrons between a metal and a nonmetal?
What are the six elements represented by CHNOPS, which are important elements in living organisms?
Crack the passcode before the zombies get in.
Answer, then swat bugs for bonus points.
Race through questions at your own speed.
Same question on every screen. Fastest wins.
Pick a tile, answer, hit bonuses and steals.
Grade 7 review
25 questions
