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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.
Pick a tile, answer, hit bonuses and steals.
Battleship. Sink every enemy ship to win.
Pass the potato before the fuse runs out.
Buy low, sell high, before the news breaks.
Take the wages, or take the whole vault.
Answer, then shoot for the top corner
What always happens during a chemical change?
Which of the following is a key component of a chemical reaction?
The fundamental building blocks of matter are called:
What are the starting materials in a chemical reaction called?
What are the newly created substances in a chemical reaction called?
The Law of Conservation of Mass states that mass is:
In a chemical change, atoms are:
Which observation is a clear sign of gas production?
What is a solid formed by mixing two liquid solutions called?
A reaction that releases heat energy to its surroundings is:
A reaction that absorbs heat, causing temperature to drop, is:
What does the arrow (→) mean in a word equation?
Which of the following is an example of a chemical change?
Which process represents a physical change?
What color does iron rust usually display?
Glowing glowsticks and fireworks are examples of light produced by:
What forms on the right side of a word equation?
Burning magnesium metal in air reacts with which gas?
Which product forms when baking soda reacts with vinegar?
How do the total mass of reactants and products compare in a closed system?
21. _____ A chemical change creates entirely new substances with distinct properties.
22. _____ Physical changes alter the chemical identity of a substance.
23. _____ Chemical bonds break and reform during a chemical reaction.
24. _____ Atoms can be destroyed during a chemical reaction.
25. _____ Dissolving salt in water is a chemical change.
26. _____ Bubbling without external boiling indicates gas production.
27. _____ A precipitate is a liquid formed when two solids are heated.
28. _____ Exothermic reactions release energy and feel warm.
29. _____ Endothermic reactions absorb energy and cause cooling.
30. _____ In word equations, reactants are always placed on the left side.
31. _____ An equals sign (=) should be used instead of an arrow (→) in chemical equations.
32. _____ Burning wood is an example of a reversible physical change.
33. _____ Iron rusting is a chemical reaction involving oxygen and water.
34. _____ The total number of atoms remains constant before and after a chemical reaction.
35. _____ Odor emission can be an indicator of a chemical reaction.
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Keep the tile or give it to a rival team.
Answer correctly to move your piece.
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Pick a chest. Big bonus, or lose it all.
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Climb the mountain, or push a rival off it.
