1. Bailey wants to find out which frozen solid melts the fastest: soda, gatorade, or orange juice. She pours each of the three l

Question

4 months ago

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1. Bailey wants to find out which frozen solid melts the fastest: soda, gatorade, or orange juice. She pours each of the three l

iquids into the empty cubes of an ice tray, along with a forth liquid, plain water. She then places the ice tray in the freezer over night. The next day, she pulls the ice tray out and sets each cube on its
own plate. She then waits and watches for them to melt. When the last part of the frozen liquid melts, she records the time.

Independent Variable:
Dependent Variable:
Control(s):
Constants:

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2. Jack wants to find out which laundry detergent cleans the best. So, he takes a cotton sheet and cuts it up into equal squares. He stains four squares with chocolate. He washes one of each of the squares in each of the 3 detergents, and the final square is washed in plain water. For each wash load, he used: the same amount of water, the same amount of detergent, and the same temperature of water.

Independent Variable:
Dependent Variable:
Control(s):
Constants:

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Maverick wants to find out whether or not Miracle Grow really makes plants grow faster. He takes two identical pots, puts ½ cup of dirt into each one, puts 3 pea plant seeds into each one, and tops each off with ½ cup more dirt. He waters the plants the same amount at the same time each day. The only difference is that one plant is watered with regular water, while the other is watered with water that has Miracle Grow in it.

Independent Variable:
Dependent Variable:
Controls(s):
Constants:

Chemistry

2 answers:

Alekssandra [3K] · Answer 1 · 2026-02-23T19:13:16+03:00

Answer:

Scientific investigations are conducted to evaluate hypotheses that involve three categories of variables: independent, dependent, and constant variables.

1. Independent variables: These can be controlled and adjusted during the experiment.

2. Dependent variables: These are assessed during the investigation.

3. Constant variables: These remain unchanged throughout the experiments but can influence the dependent variable.

4. Control: This is the sample that excludes the dependent variable.

Based on this, the variables identified in the examples are:

Case I

Independent variables-Time and night hours.

Dependent variables- state of the melting liquid

Constant variable- freezer and ice tray

Control- plain water

Case II

Independent variables- chocolate type, fabric type, fabric squares

Dependent variables- the type of detergent used

Constant variable- equal amounts of water, detergent, and temperature.

Control- square washed only with water.

Case III

Independent variables- Duration

Dependent variables- growth rate of the plant

Constant variable- pots and the consistent water amount given

Control- pots without Miracle Grow watering

VMariaS [2.9K] · Answer 2 · 2026-02-23T19:13:33+03:00

First scenario:

IV: soda, gatorade, orange juice, and water

DV: state of the liquids listed above

Control: freezer and ice tray

Second scenario:

IV: laundry detergent, water

DV: cleanliness of the squares post-wash

Control: chocolate, cloth type, cloth squares

Third scenario:

IV: type of water used, pea plant

DV: growth of the pea plant

Control: pots and daily water amount for the plant