SAMPLE
PROCEDURES
PROCEDURE
Get a film canister and pour 15 mL of water
into the canister. Cut an alka seltzer tablet in
half and quickly drop into the canister with
water. Immediately close the container with its
cap and shake 2 times. Place on pavement
cap side down and immediately start timing
when the container pops. Stop timing when
the container hits the ground. Record in
seconds. Repeat 2 more times. Repeat using 1
tablet and 1 ½ tablets.
PROCEDURE
Gather materials. Using a graduated cylinder
pour 10mL of room temperature, tap water into a
glass baby food jar. Then pour 20 mL of room,
temperature tap water into a second glass baby
food jar of the same size and shape. Finally, pour
30 mL of room temperature, tap water into a third
glass baby food jar of the same size and shape.
Next, using a pipet, place 10 Aedes aegypti
mosquito larvae that are three days old into each
jar. Put one drop of mosquito diet solution every
day until the experiment is over. Cut tulle netting
into 3 equal sizes and shapes (4cm x 4 cm
squares). Place each one over each jar and
secure the netting with a rubber band. Place the
three jars on the same shelf. Observe jars and
record the number of larvae and pupa daily until
the end of two weeks.
PROCEDURE
Get materials. Take the 100 mL, plastic cylinder
container. Then using a graduated cylinder measure
50 mL of room temperature tap water and pour it into
the container. Place 25 Aedes aegypti larvae that are
3 days old into the container. Using a pipet, release
one drop of mosquito diet food solution into the
container every day throughout the experiment. Take
a 4cm x 4cm piece of tulle netting. Place it over the
container and secure it with a rubber band. Place the
container on the window sill. Repeat this procedure,
but instead use a 150 mL and a 200 mL plastic,
cylinder container. Record observations and the
number of larvae and pupa daily.
Title: The Effect of the Amount of Alka-Seltzer Tablets on the Time in the
Air.
Hypothesis: If the amount of tablets are 1 and ½, then the time in the air
will be the greatest because the more tablets, the more CO2 gas
produce so there will be more force in the canister to propel the rocket
farther.
___________________________________________
___.
IV: amount of alka seltzer tablets
1/2
1
1 1/2
3
3
3
DV: time in the air (s)
Control: none
Controlled Variables/constants: same amount,
temperature and type of water, same size and type of film
canister, same brand of tablet, same weather conditions,
same surface of launch site, same stopwatch
RED TEAM
EDD
Title: The Effect of the Amount of Water on the Time
for Pop Rocks to Pop.
Hypothesis: If the amount of water is 10 mL then the
Pop Rock will pop in the least amount of time
because the Pop Rocks have more water to pop in.
IV: amount of water (mL)
10
15
20
3
3
3
DV:time for Pop Rocks to pop (s)
Control: no control
Controlled Variables/constants: same amount and
flavor of Pop Rocks, same type and size of cup, same temperature of
water, same type of water, same measuring tools
Title: The Effect of the Size of Pop Rocks on the Time for Bubbles to be
Completely Released.
Hypothesis: If the size of Pop Rock is large then it will release the
bubbles for the longest time because it will have more room for gas
inside of them.
___________________________________________
___.
IV: size of Pop Rocks
Small
Medium
large
4
4
4
DV: time for bubbles to completely release (s)
Control: none
Controlled Variables/constants: amount, type and
temperature of water, same measuring tools, same size and type
cup, same flavor Pop Rocks,
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants:
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants:
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants:
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants:
BLUE TEAM
EDD
Title: The Effect of the Temperature of the Water on the Time for Pop
Rocks to Pop.
Hypothesis: If the temperature of the water is cold then the pop rocks
will pop the longest because they won’t dissolve as quickly as hot
water.
___________________________________________
___.
IV: temperature of the water
room
cold
hot
3
3
3
DV: time for Pop Rocks to pop (s)
Control: room
Controlled Variables/constants: same amount and type of
water, same size and type of cup, same stopwatch, same
brand, flavor and amount of Pop Rocks, same
environment, same person timing,
Title: The Effect of the Different Liquids on the Time Pop
Rocks Take to Dissolve.
Hypothesis: If the sprite is tested then it will dissolve the
Pop Rocks the fastest because the CO2 will help speed up
dissolving time.
IV: different liquids
Sprite
Apple juice
Water
3
3
3
DV: time to dissolve (s)
Control: no control
Controlled Variables/constants:same flavor and amount of
Pop Rocks, amount of liquid, same temperature of liquid, same person
timing, same stopwatch, same size and type of cup, same location, same
brand of each liquid,
Title: The Effect of the Different Viscosity Levels on the Time for Pop
Rocks to Pop.
Hypothesis: If the viscosity of the liquid is less then the pop rocks will
pop longer because
IV: different viscosity levels
Rubbing alcohol (low)
Milk (medium)
Vegetable oil (high)
3
3
3
DV: time for Pop Rocks to pop (s)
Control: water
Controlled Variables/constants: amount of Pop Rocks,
same brands for each level of liquids, same size and type of cup,
same flavor of Pop Rocks, same temperature of liquids, measuring
tools and person timing, same location,
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants:
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants:
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants:
YELLOW
TEAM
EDD
Title: The Effect of the Flavor of Pop Rocks on the Time it takes to Pop.
Hypothesis: If the flavor of Pop Rocks is strawberry then it would take
the same amount of time as the others because the flavor does not
affect the popping time.
___________________________________________
___.
IV: flavor of pop rocks
Strawberry
Watermelon
3
3
3
DV: amount of time to pop (min)
Control: none
Controlled Variables/constants: amount of water, amount
of pop rocks, type and size of cup, type and temperature of water, same
environment, brand of pop rocks, same stop watch and graduated cylinder,
same immediate starting time, same person timing
Amount of Time to Dissolve.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV: type of liquid
Regular soda
OJ
Skim milk
3
3
3
DV:amount of time for Pop Rocks to dissolve (s)
Control: no control
Controlled Variables/constants: amount and flavor of
Pop Rocks, amount of liquid, type and size of cup, same
environment, same measuring tools, same immediate starting time
and same person timing
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants:
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants:
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants:
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants:
PURPLE
TEAM
EDD
Title: The Effect of the Flavor of Pop Rocks on the
Dissolving Time.
Hypothesis: If watermelon Pop Rocks are used then
the dissolving time will be less because
watermelon is the most acidic.
IV: different flavor Pop Rocks
Watermelon
Strawberry
Green apple
3
3
3
DV: time for Pop Rocks to dissolve (s)
Control: no control
Controlled Variables/constants: same amount and
temperature of water, same type of water, same amount of Pop
Rocks, same location, same size and type of cup, same measuring
tools
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants:
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants:
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants:
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants:
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants:
ORANGE
TEAM
EDD
Title: The Effect of the Types of Liquids on the Time
for Pop Rocks to Pop.
Hypothesis: If lemon juice is used then it would pop
the longest because it is more acidic.
IV: types of liquids
Windex
Water
Lemon juice
3
3
3
DV: time for Pop Rocks to pop (s)
Control: water
Controlled Variables/constants: amount of liquid, same
measuring tools, same amount and flavor Pop Rocks, temperature of
liquids, same type and size cups
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV: type of liquid
Water
Lemon juice
Seltzer
3
3
3
DV: amount of CO2 (cm)
Control: water
Controlled Variables/constants:
amount of liquid, size and
type of container, same size and type balloon, amount of time to dissolve,
same flavor and amount of Pop Rocks, temperature of liquids, same size
flask, same measuring tools, same amount of swirls
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants:
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants:
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants:
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants:
GREEN
TEAM
EDD
Title: The Effect of the Carbonation and Sugar on the Pop Rocks
Dissolving Time.
Hypothesis: If the Pop Rocks are in soda then it will dissolve faster
because the sugar and acid in soda act as weathering agents, wearing
the pop rocks away faster.
IV: the carbonation and sugar
Water
Seltzer
sprite
3
3
3
DV:time to dissolve (s)
Control: water
Controlled Variables/constants:temp of the liquids,
amount of pop rocks, amount of liquid, temp of pop rocks, same size
cup, sodas opened same day, same location, types and flavors,
same graduated cylinder and stopwatch
Title: The Effect of the Amount of Pop Rocks on the Amount of CO2
Lost.
Hypothesis: If the greatest amount of Pop Rocks are dissolved then they
will lose the most CO2 because they have the most CO2 to lose.
___________________________________________
___.
IV: amount of Pop Rocks (g)
3
4
5
3
3
3
DV: amount of CO2 lost (g)
Control: none
Controlled Variables/constants: same temperature of water, same
type of liquid, same type and flavor of Pop Rocks, same size and
type and shape of container and same amount of humidity in air,
same measuring tool.
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants:
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants:
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants:
_________________.
Hypothesis: If _________________________ then
___________________________ because
__________
___________________________________________
___.
IV:
DV:
Control:
Controlled Variables/constants: