Chemistry and light

Name: ______________________   Date: ____________

Write the missing letters on the lines to finish each word.

1.
l t
What lets us see; the opposite of dark
2.
r e e
To manifest or bring back
3.
b e
A circular segment of a curve
4.
c u
A line on a graph representing data
5.
e p i o
A violent release of energy caused by a chemical or nuclear reaction
6.
c e m y
The science of matter
7.
e p i o
Pouring out fumes or lava
8.
c o n
An abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous ___
9.
a i
Any of various water-soluble compounds having a sour taste and capable of turning litmus red
10.
b b e
A hollow globule of gas (plural)
11.
w a
Clear liquid we drink that falls as rain
12.
f m
A mass of small bubbles formed in or on a liquid
13.
m e t
14.
s o
A sweet drink containing carbonated water and flavoring
15.
e p e r i
The act of conducting a controlled test or investigation
16.
s i e
Study of the natural world through experiments
17.
l i i
State of matter that flows like water
18.
m c l e
The simplest structural unit of an element or compound
19.
b e
A signal transmitted along a narrow path