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40 votes
40 votes
A student conducts an experiment to determine how the temperature of water affects the time for salt to dissolve in 100 mL of water. The student makes one measurement for each temperature.

What is one way that the student could improve the experiment?

perform multiple trials for each measurement instead of just one

perform one trial for each measurement but use a different volume of water for each test

use a different timer for each temperature of water

use a different type of salt for each temperature of water

User Honesta
by
2.4k points

2 Answers

18 votes
18 votes

Answer:

"perform multipule trials for each measurment instead of just one"

Step-by-step explanation:

quite literaly did the 1.07 quiz and its correct and why the heck not give you the rest of the answers because im awesome (k12 answers)

1. Kate gathered three boxes of the same size made of different materials: glass, clear plastic, and aluminum painted black. She placed them on a window sill in the sun for an hour and then measured the warmth of the air in each box.

In this experiment, what is the warmth of the air?

(answer) "a dependent variable"

2. A student drops three blocks from the same height and measures the time it takes for the blocks to hit the ground. Each block has a different mass.

What is the dependent variable in the experiment?

(answer) "the time for the blocks to hit the ground"

3. A student conducts an experiment to determine how the temperature of water affects the time for sugar to dissolve. In each trial, the student uses a different amount of water and a different temperature of water.

What is wrong with this experimental design?

(answer) "The student changed more than one independent variable."

4. Which statement best represents a proper hypothesis?

(answer) "If different types of leaves are exposed to low temperatures, then they will change colors."

your welcome

-your friendly neighborhood k12er

User Runrig
by
3.5k points
16 votes
16 votes

Answer:

b

Step-by-step explanation:

User Parth Verma
by
2.3k points