A. The following sentences describe a component of a scientific investigation. Match each
sentence with the component of a scientific investigation written in the box below.
_____1. Hannah soaked 5 different kinds of seeds in water overnight. Then she planted the seeds in soil at a
depth of 1 inch. She used the same amount of water, light, and heat for each kind of seed.
_____2. Paul read about hydroponics. He wanted to know how plants could grow without soil.
_____3. Tim said, “If I grow seedlings in red light, the plants will grow faster than 5 plants grown in white light.”
_____4. Ester ‘s experiment showed that earthworms move away from light.
_____5. Michael experimented with the diets of guinea pigs. He found that guinea pigs need vitamin C and
protein in their diets.
B. Below is a simple experiment done by a class. Arrange the steps to show an orderly manner
of doing things (scientific method) in a scientific investigation. Number the steps from 1 to 5
with 1 as the beginning step.
_____1. The class recorded their observations then analyze
_____2. The class wanted to know which material best absorbs sound.
_____3. As shown in the class experiment, rough surfaces can reduce echo.
_____4. Based on their previous observations they said, “ rough surfaces reduce the echo of sounds”.
_____5. They collected at least 3 materials with smooth surface and 3 materials with rough surface. They used
each material to cover same size of box then played music inside the box with same volume. They
listened to the sound produced with earphones on.
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