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WorksheetsChemistry PreTest
Total questions: 20
Worksheet time: 15mins
anything that has mass and takes up space
matter
weight
solid
solution
As you move left to right on a row or period what happens?
Atomic number increases by 1
Electrons decrease
Number of shells decrease
Nothing
The energy required to start a chemical reaction is ___.
endothermic
exothermic
activation
released
The law of conservation of mass says substances can neither be _______ nor ___________.
Built; torn down
Blended together; separated
Created; destroyed
Condensed; extracted
this force occurs when ions/atoms create attractive and repulsive forces.
electric
magnetic
electromagnetic
Energy is...
feeling good
the ability to do work or cause change
the food chain
looking at TV until you fall asleep
Energy is...
feeling good
the ability to do work or cause change
the food chain
looking at TV until you fall asleep
Kinetic energy is...
energy of a moving object
you napping
you at rest
being still
Heat energy...
when an object is moving
light you can see
a sound you hear
moves from hot to cold
How can we tell if a source is reliable?
It's current (within the past 5 years)
It's author is a professional in their field
The news is written professionally
All of the above
