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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.
A mixture contains substances that are chemically combined.
A homogeneous mixture is also called a _____.
Which is a heterogeneous mixture?
Which method separates sand from water?
Which method separates iron filings from sand?
Which method can obtain salt from salt water?
An element cannot be broken down into simpler forms by _____.
A compound is formed by chemical combination of elements in _____.
Which is a molecule of an element?
Which is a molecule of a compound?
How many atoms are in one H₂O molecule?
How many different elements are in CO₂?
Which is an organic compound?
Which is an inorganic compound?
Heating mercury oxide produces mercury and _____.
Electrolysis of acidified water produces hydrogen and _____.
Which is a physical property?
Which is a chemical property?
Why can iron filings be separated from flour?
Pure substances are classified into _____.
Chemical bonding mainly involves _____.
Noble gases are stable because their outer energy level is _____.
A metal that loses valence electrons forms a _____.
A nonmetal that gains electrons forms a _____.
Sodium forms Na⁺ by _____.
Chlorine forms Cl⁻ by _____.
An ionic bond is attraction between _____.
Which is an ionic compound?
A covalent bond forms when atoms _____.
Which molecule contains covalent bonds?
A single covalent bond shares _____.
A double covalent bond shares _____.
A triple covalent bond shares _____.
The bond between oxygen atoms in O₂ is _____.
The bond between nitrogen atoms in N₂ is _____.
Which bond usually forms between a metal and a nonmetal?
Which bond usually forms between nonmetal atoms?
What is the charge of Na⁺?
What is the charge of Cl⁻?
A positive ion has _____.
A negative ion has _____.
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.
Testing quiz science year 3 floating and sinking
10 questions
