1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
natima [27]
3 years ago
12

Bio 1 01.04 properties of water

Biology
1 answer:
GarryVolchara [31]3 years ago
3 0


<span>                                          1.04 Properties of Water</span>

Question: What effect will adding soap to water have on surface tension?

 

Hypothesis<span>: If, soap is added to the water slowly dropped on a penny then, the penny will hold more water. </span>

 

Independent/Dependent/Control Variables: Independent: the amount of soap/oil; Dependent: the penny; Control: amount of oil/water given

 

Materials: 3 cups, water, canola or olive oil, dish soap, a pipette and or needle/syringe, pennies

 

<span>Procedure:

</span>

<span>·       </span>Gather three identical cups

<span>·       </span><span>Add water to the first one (1/3 cup of water in each), add water and soap in the second one, and olive or canola oil in the third. </span>

<span>·       </span>Lay out three pennies.

<span>·       </span>Take pipette and slowly bring water in from cup #1, drop onto penny until water falls over, record results of how many drops it took.

<span>·       </span>Repeat with cup numbers 2-3 and record information/data.

Data/Observations: With the regular water on a penny, I noticed that only 13 regular drops could fit on without falling over.

<span>With the water+soap, it got up to 24 drops before falling over. Then on the 25th drop, the mixture fell off. </span>

With the oil, it was the highest at 29 drops before falling over slowly. Therefore, oil holds the most surface tension in this experiment.

 


 





You might be interested in
In a classic experiment using pea shape, Mendel conducted two separate genetic crosses. In the first cross the parent plants wer
Kruka [31]

Answer:

The law of segregation is the Mendel’s laws or principles explain that traits are passed from parents to offspring individually instead of as pairs, groups or sets.This is a law or principle which states that during the formation of gametes, two copies of each heredity factors separate out so that the new offspring can get one factor of both the parents. This law was the first law in this direction. 

7 0
3 years ago
Read 2 more answers
Hummingbirds transfer pollen from one flower to another while feeding. What plant structure contains the pollen?
disa [49]
It is contained in the pistil
7 0
3 years ago
Question 4 (Multiple Choice Worth 3 points)
sweet-ann [11.9K]

The creation of DNA fragments with ends that can join with other DNA is achieved by the use of restrictive enzyme analysis.

<h3>What are restriction enzymes?</h3>

They are enzymes utilized in genetic engineering or gene recombination technology to cut DNA at some specific points in other to have sticky ends.

The sticky ends DNAs are able to join with other DNAs using these ends. Another enzyme (Ligase) is utilized to join the DNA back once the desired DNA has been inculcated.

More on restriction enzymes can be found here: brainly.com/question/13944056

#SPJ1

8 0
2 years ago
7. In a classification system, kingdoms contain: (a) the greatest
Tju [1.3M]

Answer:

A

Explanation:

The kingdom is the least specific classification of living things, so it therefore encompasses the largest variety of organisms

7 0
3 years ago
The waste product of nuclear energy which is a possible pollutant is:
Tamiku [17]

Answer:

A

Explanation:

Liquid cooling is applied around the uranium rods to cool them. When this water is heated thanks to uranium, it produces water vapor.

5 0
3 years ago
Read 2 more answers
Other questions:
  • 1.This part of the skeleton includes the arms and legs.
    6·1 answer
  • For each FADH2 that supplies electrons to the electron transport system, ________ ATP(s) is/are synthesized. For each NADH H tha
    5·1 answer
  • Which nonspecific defense mechanism increases the resistance of cells to viral infection and slows the spread of disease?​
    9·1 answer
  • Producers transform light energy into chemical energy. True or false
    7·1 answer
  • What are the three effects of melting sea ice in the polar regions?
    15·2 answers
  • Match each type of cell junction with its description.
    9·1 answer
  • Does our galaxy have a Moon?
    14·1 answer
  • The DNA sequences below show DNA segments for four different species.
    7·2 answers
  • How long does it take for weed seeds to sprout in soil
    12·1 answer
  • Although male and female reproductive structures differ from one another in many ways, they carry out some of the same functions
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!