Vocabulary
During a _________ change the material remains as the same substance but it may appear different
What is a physical change.
When iron rusts this kind of change has occurs.
What is Chemical?
A chemical reaction where a larger substance is broken down into smaller components
What is a decomposition reaction?
Vinegar and lemon juice are classified as this.
What is an acid
This type or reaction can be seen by an egg being boiled.
What is chemical
A sign of a chemical reaction occurring that often results in observing bubbles or fizzing.
What is production of a gas.
Elements or compounds come together to make or form a larger compound.
What is a synthesis reaction?
Cleaning supplies like bleach and soap are classified as this.
What is a base.
What are two safety precautions to use when using chemicals at home.
What is carefully reading warning lables, read directions, gloves and goggles
This is placed in the middle of a chemical equation to represent the chemical reaction taking place.
What is an arrow
A chemical reaction occurs when particles _______ into each other.
What is bump
Copper carbonate, a greenish powder, turns this colour when heated gently.
What is black
Describes what happens during a chemical reaction.
What is a chemical equation (or word equation)
What are heat and light
This metal burns a bright white colour.
What is magnesium.
This gas is produced when some metals react with acids. It can be identified by using the 'pop' test.
What is hydrogen.
A substance that is the result of a chemical reaction
What is a product
This substance is added to a reaction to speed it up but it is not consumed by the reaction itself
What is a catalyst
By crushing a substance you can increase reaction speed. This is because you are increasing the ________ _________ of the reactants.
What is surface area.