Nicholas planted five carrot seeds in each of three different milk
cartons of equal size. He filled each carton to the same level with the
same kind of soil. He put on carton outside in the sun, one on the
counter in the classroom light, and one inside a dark closet. He gave
each carton 25 ml of water each day at 11 am. He watered all three
cartons every day for fifteen days and then measured how tall each
plant grew.
Stacey choose 2 fat free chips, baked chips, and regular potato
chips all about the same size. She then crushed them each on a
brown paper bag and waited 30 minutes. Then she used a ruler to
measure the widest part of the grease stain for each chip and
compared the results to see which was the greasiest.
Highlighting Variables
Name _____________________________________________
Lawrence choose three identical paper cups and poke a similar
hole in the bottom of each cup. He filled each cup to the same
level with different material - soil, sand, or pebbles. Then he
poured 1 cup of water into each cup at a time and held it over
the tray for one minute. He then measured the amount of water
that drained into the tray from each cup.
Directions: Read each paragraph below. Highlight the independent variable in pink, the dependent variable in yellow, and the controlled variables in green.
© The Owl Teacher
Jose choose four identical paper towels and pour one
tablespoon of water onto the center of each paper towel. He
hung strings across four different places and clipped each
paper towel to the string by one corner so it hung in the air. He
hung one paper towel outside in a sunny spot, one outside in a
shady spot, one inside the light, and one inside the dark. After
30 minutes, he took all four paper towels down and felt them
to compare how dry each one had become.
Jessica wanted to know if a car travels farther when it’s
lighter or heavier. She wrapped two identical rubber bands
around two identical boards to help pull the cars back and
spring them forward. She measured back 5 inches and
marked a line so that she could always pull the cars with
the rubber bands back to that point before letting them go.
She then pulled one car back to the line, one at a time, and
let go of them. She then measured how far each car rolled.
Malik stood on pavement and extended his arm out from his
shoulder. He then dropped a tennis ball and measured with a
meter stick how high it bounced up. He repeated this two more
times. Next, Malik stood on dirt and extended his arm out from
his shoulder. He dropped the same tennis ball and measured
using the same meter stick how high the tennis ball bounced
up. He repeated this two more times with the dirt. Finally, Malik
stood on grass and repeating the exact same procedures,
determined how high the ball bounced.
© The Owl Teacher
Nicholas planted five carrot seeds in each of three different milk
cartons of equal size. He filled each carton to the same level with the
same kind of soil. He put on carton outside in the sun, one on the
counter in the classroom light, and one inside a dark closet. He gave
each carton 25 ml of water each day at 11 am. He watered all three
cartons every day for fifteen days and then measured how tall each
plant grew.
Stacey choose 2 fat free chips, baked chips, and regular potato
chips all about the same size. She then crushed them each on a
brown paper bag and waited 30 minutes. Then she used a ruler to
measure the widest part of the grease stain for each chip and
compared the results to see which was the greasiest.
Highlighting Variables
Name _____________________________________________
Lawrence choose three identical paper cups and poke a similar
hole in the bottom of each cup. He filled each cup to the same
level with different material - soil, sand, or pebbles. Then he
poured 1 cup of water into each cup at a time and held it over
the tray for one minute. He then measured the amount of water
that drained into the tray from each cup.
Directions: Read each paragraph below. Highlight the independent variable in pink, the dependent variable in yellow, and the controlled variables in green.
KEY
© The Owl Teacher
Jose choose four identical paper towels and pour one
tablespoon of water onto the center of each paper towel. He
hung strings across four different places and clipped each
paper towel to the string by one corner so it hung in the air. He
hung one paper towel outside in a sunny spot, one outside in a
shady spot, one inside the light, and one inside the dark. After
30 minutes, he took all four paper towels down and felt them
to compare how dry each one had become.
Jessica wanted to know if a car travels farther when it’s
lighter or heavier. She wrapped two identical rubber bands
around two identical boards to help pull the cars back and
spring them forward. She measured back 5 inches and
marked a line so that she could always pull the cars with
the rubber bands back to that point before letting them go.
She then pulled one car back to the line, one at a time, and
let go of them. She then measured how far each car rolled.
Malik stood on pavement and extended his arm out from his
shoulder. He then dropped a tennis ball and measured with a
meter stick how high it bounced up. He repeated this two more
times. Next, Malik stood on dirt and extended his arm out from
his shoulder. He dropped the same tennis ball and measured
using the same meter stick how high the tennis ball bounced
up. He repeated this two more times with the dirt. Finally, Malik
stood on grass and repeating the exact same procedures,
determined how high the ball bounced.
© The Owl Teacher
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