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Brums [2.3K]
2 years ago
5

Properties of Water Lab ReportInstructions: Choose a property of water and design an experiment to test the property. Use the fo

llowing lab template to ensure all lab report components are included. (100 points)
Title:


Objective(s):

Identify the purpose of your investigation or the question you are attempting to answer. Be sure to tie in the property of water you are testing.


Safety Notes:

Always have parent(s) or guardian(s) permission and supervision when performing a lab activity at home.

Wear proper protective clothing and eyewear when needed.

Be sure to dispose of all materials properly.

Always wash your hands carefully after touching anything in a lab investigation.

Hypothesis:


Variables:

Independent Variable:

Dependent Variable:

Controlled Variable:


Materials:


Procedure:

The procedure should be clear and detailed so that others can repeat it. The details should be specific in how the procedure changes the independent variable, controls all variables that need to be controlled, and observes or measures the resulting changes to the dependent variable.


Data and Observations:

Present all data and observations in a neat and organized manner. Include tables and graphs where appropriate/possible.




Conclusion:

Be sure to answer the following reflection questions as a summary in the conclusion of your lab report:

Was your hypothesis correct? Why or why not?

What were the results of your experiment?

What changes would you make if you were to repeat the experiment?


Questions:

Using what you have learned in the lesson and the experiment, answer the following question in complete sentences.

Analyze the property of water you investigated and provide some real-world applications of the importance of this property of water.
Biology
1 answer:
swat322 years ago
8 0

Answer:

Hypothesis: I think the penny will hold more droplets plain water because adding soap to the water will disrupt surface tension

Independent variable: Penny and water dropper

Dependent variable: plain water

Independent variable:soapy water

Hope this helped

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kozerog [31]

Answer:

Question 1

D

Question 2

C

Question 3

D

Explanation:

1. An ecosystem is MOST likely to return to its original condition after Tall prairie grass burns after being struck by lightning.

Here is a research paper in which they explained how this happened. (Komarek, E. V. (1971). Lightning and fire ecology in Africa. In Tall Timbers Fire Ecology Conference (Vol. 11, pp. 473-509).)

2. In some national parks, controlled fires are maintained by firefighters. The major reasons for using controlled burns to maintain certain ecosystems is to give nonnative plants a chance to colonize the region.

A recent article provided the insight of this situation (Xanthopoulos, G., Delogu, G. M., Leone, V., Correia, F. J., & Magalhães, C. G. (2020). Firefighting approaches and extreme wildfires. In Extreme Wildfire Events and Disasters (pp. 117-132). Elsevier.)

3. One reason for the change in the Galápagos ecosystem has been the introduction of species that were not on the island before, such as donkeys, goats, cats, dogs, and insects. The introduction of nonnative species MOST likely disrupt the balance of life on the islands due to greater competition for limited food sources.

Scientist said that food competition is actually a struggle to survive in any ecosystem here is the reference paper (Eckhardt, R. C. (1972). Introduced plants and animals in the Galapagos Islands. Bioscience, 22(10), 585-590.)

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What allows substances to go through the cell?
Rudik [331]
Even the cell membrane is like the cell wall its flexible and lets certain things in and certain things out.
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Although antacids containing calcium carbonate can increase calcium intake, what effect would excessive consumption of the carbo
nata0808 [166]

Answer:

The blood pH will increase.

Explanation:

Antacids are the chemicals that works against the acids that produced in our stomach. Antacids are generally used to treat the excessive acidity of the stomach.

The intake of excessive carbonate base causes the release of gastric acid secretion in the stomach. Hence, the blood pH increases due to the presence of H + ions in the blood.

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Answer:

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Explanation:

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