Experiment
A controlled procedure set up to prove a
hypothesis (prediction) correct or incorrect
Parts of an Experiment
Hint: Think of an experiment like a recipe that you
would use to bake a cake. The materials list would
be like the ingredients list.
Materials list
Includes all of the items needed to conduct the
experiment and to measure and record the results
Parts of an Experiment
Hint: The procedure is like the set of instructions in a
recipe. They tell you the order of the steps you need to
follow to put the ingredients together and bake the
cake.
Procedure
The numbered sequence of steps a scientist would have
to go through in order to duplicate your experiment. It
is a procedure with controlled variables that keep the
conditions “fair”.
Plant Experiment
Procedure
1. Fill all pots with an equal
amount of soil.
Materials List
12 bean seeds
6 three inch plastic pots with
bottoms
Potting soil
Water
One fluorescent light
One LED light
Ruler
Pencil and paper
Camera
2. Document experiment with
camera
3. Plant two seeds in each pot.
4. Place 3 pots under the LED
bulb for 10 hours / day.
5. Repeat step 4 with the
Fluorescent bulb.
6. Water each pot the same
amount every three days.
7. After 3 weeks measure each
plant.
8. Record the results on paper.
Procedure
Materials List
1.
Put one magnet in the freezer for
one hour.
2.
Place other magnet at room
temperature for one hour.
3.
Dump box of paper clips on table.
4.
Take magnet from freezer. Lay one
side of magnet in the pile of paper
clips to pick up as many paper clips
as possible.
5.
Repeat with all sides of magnet
6.
Remove paper clips from magnet
and record the amount .
7.
Repeat steps 3 – 6 with the room
temperature magnet.
8.
Repeat steps 1 – 7 two more times
for each magnet.
2 two inch horseshoe magnets
1 box of small paperclips
Freezer
Pencil and paper
camera
Conduct your Experiment
First read through to make
sure you understand all
your steps
Gather the materials
Make sure you have your
camera, pencil, and paper
to document and record
your results
Template for Results Table
Title
Manipulated
Variable
Responding variable; Unit of measure
Mean
Trial 1
Trial 2
Trial 3
data
data
data
*
data
data
data
*
*Mean: add trials 1, 2, and 3 for each manipulated variable.
Then divide the total by 3 (the number of trials)
Record your results
Make a table; include a title, manipulated variable,
responding variable and the units of measure
The
manipulated
variable is
located in
the first
column
Title
Type of
Light
The responding variable is
recorded in the horizontal
rows under each trial
Height of Bean Plants in Cm*
Trial 1
Trial 2
Mean
Trial 3
LED Bulb
Fluorescent
Bulb
*The units of measurement must be in the metric system
Pictures: http://www.clipartpanda.com/categories/scienceexperiment-for-kids
If then because: http://helponscience.weebly.com/how-tocreate-a-hypothesis.html
Science-fair.org
Light bulb pictures: Staples.com; Amazon.com