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WorksheetsRecycling Unit Vocabulary
Total questions: 23
Worksheet time: 13mins
What is an organic compound?
Molecules composed of carbon and hydrogen, and may contain any number of other elements.
Molecules that do not contain carbon.
What is recycling?
putting an object into a recycling bin
making something new out of resources that have already been used
using an object again, either for its original purpose or a different purpose
What is an inorganic compound?
Molecules composed of carbon and hydrogen, and may contain any number of other elements.
Molecules that do not contain carbon.
These particles orbit around the nucleus of an atom and have a negative charge. What are they called?
electrons
protons
neutrons
photons
Chemical or Physical:
A characteristic of matter that can be observed with your 5 senses is a ____________ property.
Chemical
Physical
Chemical or Physical:
A characteristic of matter that can only be observed when matter is changed into a new kind of matter.
Chemical
Physical
What kind of change occurs if matter changes in amount, size, or shape?
substance change
chemical change
physical change
elemental change
What kind of change occurs if matter changes completely into something else at the atomic level?
substance change
chemical change
physical change
elemental change
The process by which one or more substances change to produce one or more different substances
Chemical Process
Reactant
Chemical Reaction
The process in which nitrogen circulates and is recycled is called
The nitrogen cycle
The carbon cycle
The water cycle
The phosphorus cycle
