Chemistry
ChemHistory
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ChemReactions
100
What do you call the tiny particles that make up all matter?

What are Atoms

100

Who created the periodic table?

Who is Dmitri Mendeleev

100

I fizz when mixed with baking soda. What am I?

What is Baking Soda

100

What chemistry item keeps food cold in a cooler?

What is ice

100

What happens when ice melts? 

What is a solid changing to a liquid

200

What gas do humans breathe in to survive?

What is Oxygen

200

What famous scientist discovered gravity after seeing an apple fall?

Who is Issac Newton

200

I am the lightest element on the periodic table. What am I?

What is hydrogen

200

What gas is in soda that makes it fizzy?

What is carbon dioxide

200

What do we call a change where a new substance forms?

What is a chemical reaction

300

What is H2O better known as?

What is Water

300

Who discovered radioactivity?

Who is Marie Curie?

300

I help balloons float. What gas am I?

What is Helium

300

What is household liquid is commonly used to clean toilets?

What is ammonia

300

What type of reaction happens when something burns?

What is combustion
400

What part of the atom has a positive charge?

What are Protons

400

What ancient civilization first used chemistry to make glass?

Who were the Egyptians

400

I turn reddish-brown over time. What am I called?

What is rust

400

What vitamin is commonly found in oranges?

What is vitamin C

400

What forms when vinegar and baking soda react?

What is carbon dioxide gas

500

What scale measures how acidic or basic something is?

What is a pH Scale

500

What scientist is known for studying atoms and radioactivity?

Who is Ernest Rutherford

500

I am needed for fire to burn. What gas am I?

What is oxygen

500

What metal is commonly used in soda cans?

What is aluminum

500

What do plants use sunlight in order to make food?

What is photosynthesis