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
frutty [35]
3 years ago
13

Design an experiment to test the cause-and-effect relationship between atmospheric and ocean acidification. Include a hypothesis

in the form of an “if, then” statement.
Biology
1 answer:
igor_vitrenko [27]3 years ago
4 0
<h3><u>Cause and Effect and Ocean</u> Acidification </h3>

Overview

This session focuses on the causes and effects of ocean acidification, the crosscutting concept of

cause and effect, making and interpreting graphs, and how graphs are useful to make predictions.

Through hands-on investigations, the development and interpretation of a data visualization, and

some brief readings, participants explore the causes and effects of ocean acidification. They learn

that some shell building organisms are and will be negatively impacted by ocean acidification.

They also use the information they gather to create a cause and effect flowchart, which serves as

a mental model for how all of the new information they have learned fits together. Additionally,

participants use their cause and effect flowcharts as the basis for developing solutions to a real-

life problem faced by oyster farmers in one community. Participants end the session by reflecting

on all of the ways in which the crosscutting concept of cause and effect supported their learning

around ocean acidification, as well as any other crosscutting concepts or science and engineering

practices they used during the session.

For each student:

● One copy of pages 86-89 of A Framework for K-12 Science Education

● Handout: Yeast Investigation

● Handout: Data Component of Final Project (distributed in Session 9)

● Handout: Final Project Guideline (distributed in Session 8)

● Handout: Solving Local Environmental Challenges

● Handout: Like Putting Headlights on a Car

● Handout: Key to Data Visualizations (distributed in Session 9)

● For homework - Analyzing and Interpreting Data:

○ NGSS Appendix F, p. 9

○ Framework pp. 51; 61-63

For the Transferring Data from Tables to Visualizations to Interpret activity

For each student:

● One copy of the Yeast Investigation Handout (either with the graph axes labeled or not depending

on which you would prefer to use with your participants)

● Pens

For the Ocean Acidification: Effects on Organisms activity

“Break Down” activity

1 complete set of the following for each group of 4-6 students:

● 1 cafeteria tray

● 1 dropper bottle filled with white vinegar labeled “lower pH water”

● 1 petri dish divided into three parts each with a permanent marker (label each section with one of

the following: shells/corals, seaweed, jellies)

● damp calcium carbonate powder

● gelatin powder (unflavored Knox Brand found in many grocery stores works well)

● small plastic cup/medicine cup

● 2 spoons

● damp seaweed (dampened with tap water)

● shell and coral samples

● Picture of jellies

Ocean Acidification: Effects on Organisms:

a. Prepare limewater. Limewater is a Calcium hydroxide solution. To make

it, dissolve 1/4 tsp Calcium hydroxide powder in 1000 mL of distilled

water. Invert the mixing container several times to mix the powder until

the water is relatively clear—you may need to dilute further so that water

becomes more clear (sometimes it is necessary to dilute by half). To test

the prepared limewater, add about an inch of limewater to each of two

clear cups. Add a few drops of vinegar to one of the cups. Cover the cups

with a lid that has a hole in it for a straw to fit through. Using a straw,

blow into each of the cups for about 30 seconds. Then compare the cups

side by side. The difference between the cups should be visible, with the

plain limewater cup turning cloudy and the cup with added vinegar

staying clear. NOTE: If you prepare the limewater more than immediately

before you pour it into the cups for the groups to use, you may need to

shake the solution before pouring it into the cups. The Calcium hydroxide

can come out of solution.

b. Prepare gelatin powder. Scoop into a small sealable container enough

gelatin powder for each group of 4-6 to be provided with 1 tablespoon.

Dampen the gelatin with water until it is spongy feeling or gelatinous-

looking, but not “liquidy”. Cover the container so that the gelatin powder

does not dry out. Just before class, put about one tablespoon of dampened

gelatin powder into a small medicine cup or other small plastic cup for

each group.

c. Place materials on trays. Place all of the prepared materials on the

cafeteria trays for each of the “Break Down” and “Build Up”

Investigations. Make sure to leave the dampened seaweed and dampened

gelatin powder off the trays until just before class so that they do not dry

out.

You might be interested in
Edward Jenner's smallpox inoculation experiment was based on his observation that some dairymaids who worked
mariarad [96]

From anecdotes he heard, Edward Jenner came up with the premise and conclusion that dairy maids could not get small pox because they had previously been exposed to the virus.

<h3>What was conclusion of Edward jenner in case of small pox?</h3>

He also came to the conclusion that small pox may be passed from one person to the next. Edward Jenner came to this conclusion based on stories he had heard about dairy maids being immune to smallpox.

In 1736, Edward Jenner met Sarah Nelms, a young dairy girl with small pox lesions. Edward Jenner then vaccinated an 8-year-old kid named James Phipps with material from Nelms' small pox lesion. James Phipps suffered a fever and became unwell, but he recovered completely after ten days.

Jenner infected the same boy with materials from a fresh small pox lesion a month later. There was no sickness in the boy.

When Edward Jenner was inoculated/vaccinated with matter from a small pox lesion, he came to the conclusion that he could acquire total protection from small pox.

For more information regarding small pox, visit:

brainly.com/question/15524204

#SPJ1

4 0
1 year ago
Why do mangroove tree survive in the water?
alexandr1967 [171]
<span>Mangroves store water in their leaves. some also grow pencil-like roots that stick up out of the dense, wet ground like snorkels. These breathing tubes are called pneumatophores, allowing the mangroves to cope with flooding/ survive in water

</span>
6 0
3 years ago
A fertilizer producer finds that it can sell its product at a price of dollars per unit when it produces units of fertilizer. Th
Vilka [71]

Answer:

700

Explanation:

If from the question the price per unit of fertilizer, p(x) = 300 - 0.1x

The cost of x units of  fertilizer = C(x) = 15000 + 125x + 0.025x^2

And we know that Profit = Revenue - Cost

Revenue for x units of fertilizer R(X) = x*p(x)

= 300x - 0.1x^2

Hence Profit: P(x) = R(x) - C(x)

= [300x - 0.1x^2] - [15000 + 125x + 0.025x^2]  

= -0.125x^2 + 175x - 15000

To determine critical values

P'(x) = -0.25x + 175 = 0

Thus x = 175/0.25

x = 700

To maximize profit, the manufactures must produce 700 units of fertilizers

5 0
3 years ago
What is osmosis? in your own words
Firdavs [7]
Movement of water through a plasma membrane from a low to high solute concentration.
5 0
3 years ago
Read 2 more answers
What’s the answer for this question because I’m really confused
WINSTONCH [101]

Answer: Pretty sure (D) is the right answer.

Explanation: Plants consume water, carbon dioxide, and light from the sun to produce oxygen and to survive. The other options have the incorrect input which give it away, they also have wrong outputs that plants do not produce.

5 0
3 years ago
Read 2 more answers
Other questions:
  • . Jack and Jill are thinking about starting a family and they come to you with a question about a rare recessive genetic disease
    12·1 answer
  • Dinosaurs survived for at least 700,000 years after meteorite collision Discuss how the research in this article shows how new t
    11·2 answers
  • Choose the correct answer based on the statements below:_________
    14·1 answer
  • A new species of aquatic chordate is discovered that closely resembles an ancient form. It has the following characteristics: ex
    14·1 answer
  • What is the main factor that causes the bedrock to weather at different rates?
    7·1 answer
  • 1pt Which of the following characterizes the process of trimming an mRNA transcript? A. The transcript can be trimmed at only th
    6·1 answer
  • What cause the earth to habe seasons ?
    5·2 answers
  • 2. What type of pesticide is used to kill mold?
    15·2 answers
  • Please answer I will give u brainliest
    13·1 answer
  • During photosynthesis, plants take carbon dioxide and water molecules apart, and then rearrange the
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!