Scientific Method - Do Not Shuffle Questions

An experiment is being done to determine how light affects the growth small zinnia plants. One plant is placed in full sunlight, the second in a shaded area, the third in an unlit closet. What is the independent variable in the experiment?

• The type of plants

• The amount of light

• The growth of the plant

• The type of soil

• The length of the experiment

Tags

NGSS.MS-LS1-5

When conducting the experiment, which of the following procedures should be followed? Choose all that apply.

• 3 different types of plants should be used

• The plants should be in the same size pots.

• The same type and amount of soil should be used in each pot.

• 3 plants of the same size and type should be used

• The experiment should be conducted more than once (repeated trials)

Tags

NGSS.MS-ETS1-1

The hypothesis of this experiment could be:

• Plants grow differently under different conditions

• If put a zinnia plant in direct sunlight, it will grow taller than similar plants given little or no sunlight.

• Many things, including sunlight affect the growth of a plant.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

The constants in my plant experiment are: Choose all that apply.

• the amount of sunlight

• the type of pot used

• the type of soil used

• the amount of water given to the plant

• the size and type of plants used

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Good experiments have more than one variable.

• True

• False

An experiment should only be done once, or you might come up with different and confusing results.

• True

• False

In this experiment, what is the independent variable?

• The kind of plants, the amount of water, the containers.

• The amount of sunlight

• The number of days the plant is observed

When scientists repeat experiments in the exact same way a number of times, what is this called?

• hypothesis testing

• repeated trials

• sloppy experiments. Any good experiment needs to be done only once.

In an experiment, there should be only one _________. Everything else should be a ________.

• constant - independent variable

• control - independent variable

• independent variable - constant

• trial - proven

Tags

NGSS.MS-PS2-2

Which is not an observation?

• My cat is black and white.

• My cat is fat.

• My cat is hungry.

• My cat is eating.