Corrosion - Science

Corrosion I

Aim: To investigate the factors that cause rusting in iron. 

Equipment:

• Test tubes
• Test tube rack
• A bung
• four iron nails
• Boiled water
• Tap water
• Salty water
• Cooking oil
• Calcium Chloride

Method:

1. Label four test tubes A - D and place them in a test tube rack.
2. Test tube contents:

• A = Iron nail.
• B = Iron nail and tap water.
• C = Iron nail and salty water
• D = Iron nail, boiled water and oil. 

      3. Leave the test tubes undisturbed for at least three days.

Hypothesis: Test tubes A to D can be expected to rust more and have the most visual changes, rather than test tubes E to H. 

Observations: Complete the table.

Test Tube	Conditions present or absent	Observations
A	Air	Test tube A had shown some slight rusting on the iron nail.
B	Water and air	Test tube B had corroded the most out of all the test tubes and has shown some turned the water orange.
C	Salt, water and oil	Test tube C has shown some corroding and has turned the water slightly orange.
D	Boiled water, and oil	Test tube D has shown some corroding and has turned the water slightly orange.

Corrosion II

Aim: To investigate a number of techniques that may prevent rusting. 

Equipment: 

• Four test tubes
• Test tube rack
• A bung
• Four iron nails
• Tap water
• Vaseline gel
• Nail polish or paint
• Zinc pellets or magnesium ribbon

Method:

1. Label four test tubes A - D and place in a test tube rack.
2. Fill all test tubes with equal volumes of water - enough to cover the nails.
3. Test tube contents:

• A = Iron nail, calcium chloride and a bung. 
• B = Iron nail covered in Vaseline and water. 
• C = Iron nail painted with nail polish or paint.
• D = Iron nail with a small piece of magnesium ribbon wrapped around it, or with zinc pellets added to the test tube.

      4. Leave the test tubes undisturbed for at least three days. 

Observations: 

Test Tube	Conditions present or absent	Observations
E	Calcium Chloride	Test tube E had shown no signs of corrosion and has stayed the same from the beginning.
F	Water and vaseline	Test tube F has slightly corroded at the bottom of the iron nail.
G	Water and nail polish/paint	Test tube G has shown some corroding and has turned the water orange.
H	Zinc/Magnesium	Test tube H has shown corrosion and corroded the zinc pellet.

The Great Pacific Garbage Patch - News Article

Continuing on our GPGP topic, we have been tasked to create a news article about GPGP. The news article has to contain what it is, the problem, and its cause and the effects. It should also contain some keywords that were given to us, and use them on our news article. Anyway, I tried to create it to look like a news article by changing the colour and how it looks. 

News Article

:

The Great Pacific Garbage Patch

From starting a new term, we have also begun a new topic; trashing the planet. More specifically, about The Great Pacific Garbage Patch. We have learned important details about The Great Pacific Garbage Patch or GPGP, such as what it is, how many pieces of garbage are in it, and the effects it on marine life and humans. GPGP is a patch of garbage containing around 1.8 trillion pieces of garbage and is one of the five plastic accumulation zones in our ocean. Overall, it is a significant problem both to our ecosystem, marine life, and us. Anyway, we were tasked to share our information by creating a presentation showing our work. 

Pink Shirt Day

Pink shirt days is celebrated to signify a stand against bullying. Pink shirt day originated in Canada, now celebrated worldwide on different dates; for us, it is on the 21st of May. We wear pink shirts to recognize those who are bullied and stand up for them by wearing pink clothing. 

Why does pink represent anti-bullying? In 2007, two students from Nova Scotia high school stood up for a student who was bullied for wearing a pink shirt. They bought pink shirts for the other students to show their support for the boy who wore the pink shirt. 

The Starfish Poem

What is the main passage of this poem? The main passage of this poem is to portray how doing little things can make a difference. As for this poem, starfishes are stranded on the beach and the young man gently throwing them back in the ocean. 

Give evidence of this.  The poem is about the young man saving the starfish from dying It has been suggested many times throughout the poem such as when he was questioned by a man; "But, young man, don't you realize that there are miles and miles of beach and starfish all along with it. You can't possibly make a difference!" Then the young man replied with "It made a difference for that one." 

THE  STARFISH  POEM

Once upon a time there was a wise man 

who used to go to the ocean 

to do his writing. 

He had a habit of walking 

on the beach 

before he began his work. 

One day he was walking along 

the shore. 

As he looked down the beach, 

he saw a human 

figure moving like a dancer. 

He smiled to himself to think 

of someone who would 

dance to the day. 

So he began to walk faster 

to catch up. 

As he got closer, he saw 

that it was a young man 

and the young man wasn't dancing, 

but instead he was reaching 

down to the shore, 

picking up something 

and very gently throwing it 

into the ocean.

 

As he got closer he called out, 

"Good morning! What are you doing?" 

The young man paused, 

looked up and replied, 

"Throwing starfish in the ocean." 

"I guess I should have asked, 

why are you throwing starfish in the ocean?" 

"The sun is up and the tide is going out. 

And if I don't throw them in they'll die." 

"But, young man, don't you realize that 

there are miles and miles of beach 

and starfish all along it. 

You can't possibly make a difference!" 

The young man listened politely. 

Then bent down, picked up another starfish 

and threw it into the sea, 

past the breaking waves and said- 

"It made a difference for that one."