Can you guys help here..
Let’s Create
Direction: Read and analyze the simple experiment...
Chemistry, 22.09.2021 14:00 clarissajimenez27
Can you guys help here..
Let’s Create
Direction: Read and analyze the simple experiment presented below.
Reyn, Grade 7 student, wants to know why window grills and bridges are often
coated with paints. She knew for a fact that these things are made of a hard metal known
as steel. She then asked a question, what if these bridges and grills will not be coated with
paints? What will happen to them? With her knowledge about scientific method, she decided
to perform a simple experiment using steel wool and other materials that are found at home.
Then, she prepared the following set-ups and placed them in their kitchen for 4 days.
SET UP A
Steel wool
only
SET UP B
Steel wool
2 tbsp vinegar
SET UP C
Steel wool
2 tbsp soy
sauce
SET UP D
Steel wool
2 tbsp water
On the 4th day of his experiment, she noticed that rusts develop in each set-up. She
noted the following observations: The steel wool in Set-up A developed small amount of rust,
Set-up B on the other hand showed a steel wool covered heavily with rust, while Set-up C showed significant amount of rust on the steel wool and Set-up C also grew small amount of
rust on the material.
It is now your time to help Reyn finish her experiment by filling out the Scientific
Method Outline provided below. Write your answer on a separate answer sheet. Your output
will be graded using the rubric on the next page.
Title: _
I. Problem: _
II. Hypotheses:
_
_
III. Materials
IV. Procedures
V. Results
D. Set-up (Drawing)
E. Observation/Table
F. Interpretation
VI. Conclusion: (Answer why grills and bridges have to be coated with paints)
_
Answers: 1
Chemistry, 22.06.2019 12:00
An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?
Answers: 1
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