Fill in the blanks.

1

• Fill in the blanks.

2
Which has similar chemical properties to Chlorine
(Cl)? Sulfur (S), Hydrogen (H), or Bromine (Br)
3
This is what happens when vinegar and baking soda
are mixed. What type of reaction is occurring?
4
What item is needed to complete this simple
compass?
5
Which two forms of energy are produced when a
light bulb lights?
D) Heat E) Chemical F) Nuclear
A) Sound B) Light C) Motion
6
Which instrument could be use to magnify a
crystal?
F) Mirror
A) Laser
B) Barometer C) Telescope
D) X-ray
E) Microscope
7
What causes the doorbell to make a sound?
A) Solar energy B) An electric circuit C)
Gravity D) Burning fuel
8
Which electromagnet would most likely be stronger?
A)
B)
C)
9
Which minerals will scratch topaz?
10
How will the bee help the flower reproduce?
11
Which two are most closely related?
12
Which is the primary source of energy in this
food chain?
13
Fill in the blanks with the following terms
oxygen and carbon dioxide.
14
Name two animals that compete with each other for
food.
15
Put in order from largest to smallest?
Suns
Planets
Moons
Asteroids
16
What is this crack in the Earths crust called
and what does it cause?
17
Fill in the blanks with the following terms
gravity air pressure.
18
Which process is most responsible for the
formation of this arch?
19
What caused the beads of water to form on the
outside of this glass?A) CondensationB)
EvaporationC) Chemical reactionD) A leak in the
glassE) Precipitation
20
How are igneous rocks formed?