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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.
Is melting ice a physical change or a chemical reaction?
Is burning wood a physical change or a chemical reaction?
When vinegar and baking soda make bubbles, is it a physical change or a chemical reaction?
Is dissolving sugar in water a physical change or a chemical reaction?
Is rusting iron a physical change or a chemical reaction?
What do we call the substances present before a chemical reaction starts?
What do we call the new substances made in a chemical reaction?
True or False: A chemical reaction always produces a new substance.
What is a solvent?
What is a solute?
What do we call a solute dissolved in a solvent?
In salt water which is the solvent?
In salt water which is the solute?
Is cutting paper a physical change or a chemical reaction?
Is cooking an egg a physical change or a chemical reaction?
Name one sign that a chemical reaction may have occurred.
What is dissolving?
In the particle model are particles still present after a substance dissolves?
What happens to sugar particles when sugar dissolves in water?
Does stirring usually make dissolving faster or slower?
Does heating usually make dissolving faster or slower?
Is evaporation a physical change or a chemical reaction?
What is a variable in an investigation?
If you test how temperature affects dissolving what is the variable you change?
Which type of change can usually be reversed physical change or chemical reaction?
When a gas is produced and bubbles appear what type of change is likely taking place?
What word describes particles mixing evenly into a liquid?
What word means reactants changing into products?
If chocolate melts is a new substance formed?
If two reactants form a product with different properties what has happened?
Name one sign that a chemical reaction has taken place.
What sign of a chemical reaction is shown when bubbles appear?
A liquid changes from clear to purple during a reaction. What sign is this?
A reaction becomes warm without being heated. What sign is this?
A reaction gives off light. What sign is this?
A white solid appears when two liquids are mixed. What does this suggest?
True or False: A colour change can be evidence of a chemical reaction.
True or False: Melting ice is evidence of a chemical reaction.
If a gas is produced during a reaction what might you see?
Which is a sign of a chemical reaction melting or gas production?
Which is a sign of a chemical reaction cutting paper or colour change?
Chocolate melts in the sun. Is this evidence of a chemical reaction?
Wood burns and ash forms. What evidence suggests a chemical reaction has occurred?
A reaction gets colder. Which sign of a chemical reaction is this?
Why is rusting considered a chemical reaction?
What is the strongest evidence that a chemical reaction has taken place?
A glow stick starts glowing after being bent. What sign of a chemical reaction is observed?
A substance changes colour and produces bubbles. How many signs of a chemical reaction are shown?
True or False: Dissolving sugar in water produces a new substance.
If a chemical reaction occurs can the products usually be turned back into the reactants easily?
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.
What Am I? (Easy)
16 questions
