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WorksheetsChemical Reactions & Acids
Total questions: 20
Worksheet time: 3600secs
What is vinegar made from?
The liquid left behind from rotting fruit
A special mixture of chemical
Leftover acid from experiments
The liquid left behind from molding bread
Which can dissolve a Soda Can faster?
Vinegar
Lemon Juice
Sulfur Water
What makes an acid exciting is that whenever you put something in an acid it ___________ in some way.
sits
moves
melts
reacts
Which of these things can acids do?
dissolve things
change the color of things
burn your skin
turn into water
What types of foods have acidic acid (vinegar) in them?
mayo
cake
mustard
pickles
hamburgers
Why are some acids used in food?
To sweeten the food.
To make it salty
So there will be a sour taste.
So there will be a bitter taste.
Are all acids dangerous?
Yes, all acids are dangerous because the dissolve metal.
No, all acids are not dangerous. We can eat and drink things with acid.
The alchemists claimed that ordinary metals can be transformed into gold. Is this claim true? Why or Why not?
This claim is not true. Metals can be coated with other metals; not transformed.
This claim is true! My steel nail is now gold.
This claim is not true. No explanation necessary.
This claim is true. Where is gold coming from, if not from alchemists?
Which substances helped you decide whether or not another substance was an acid or not?
Salt and pepper
Soap and water
Baking soda and the purple cabbage liquid
mustard and soy sauce
What did the alchemists discover while experimenting with substances?
chemical reactions create something new
chemical reactions are not useful
chemical reactions are always dangerous
it is easy to create gold
Choose all that apply.
Chemical changes can.....
cause a change in color
make bubbles/fizzing
make a new substance
be easily reversed
Choose all that apply.
What has been created because of a chemical reaction?
rubber
glass
lemonade
plastic
crumpling up a piece of paper
Choose all that apply.
What do fireworks, rubber, and Silly Putty all have in common?
They all go through a physical change.
They are all created by a chemical reaction.
They have interesting and useful properties.
They all require heat to make them.
Any trait of a substance, such as its color.
physical
chemical
solution
property
Occurs when 2 or more substances are mixed together and result in a new substance.
chemical action
chemical reaction
physical action
physical reaction
Which one of these is NOT a chemical change?
wood burning
vinegar and baking soda fizzing
fireworks exploding
ice melting
Choose all that apply.
What combinations create a chemical reaction?
Glue and vinegar
Baking soda and glue
Borax and glue
Baking soda and Vinegar
How do you know a chemical reaction happened?
Two things are mixed together
Two or more substances are mixed and form an all new substance
The new substance has the same properties (color, texture, etc) as the old substance
What two substances form rubber when mixed together?
acid and flour
acid and latex
flour and water
Baking soda and vinegar
