It was a sunny bright day at Moonee Ponds Primary School where the air was crisp and the sun was bright. Our class of 5/6 Z was getting ready to go to GTAC. GTAC is located in the heart of Melbourne. As we went there we saw many different famous land marks of Melbourne, from the MCG to Crown casino. I new this day was going to be wonderful.
As our class stepped into the science lab at GTAC we could already see it was going to be a fun, safe and interesting session. But I was wrong… for our first activity my friends and I had to go to another room to have a gas experiment. But it all went wrong. As the minutes went by we could not hear or see a single person walking outside. So my friend Jeremy decided to check outside. When he stepped outside the door slammed shut behind him, the door was locked and the room was dark. Then we suddenly started coughing, louder and louder by the second. I could hear Jeremy banging on the door, but that was no help because he was weak and couldn’t bash through the wooden door. I knew we couldn’t get out of this alive.
As the minutes went by the cough just got worst and worst, louder and louder. Then everything started to blur. But as a blink of an eye went pass the window behind us burst open, this was our chance to escape. All my friends where lying there unconscious and I was the only one conscious. So I quickly dragged my friends one by one to the window and threw them off into the pool below, I could hear them splashing in the water down below but I didn’t have the strength to jump. Plus I was afraid of heights. But then behind me I saw a glimpse of light, it wasn’t the light from the door it was the light from the fire.
I had no option but to jump because the fire was so close I could almost feel it burning. I leaped from the window and down I went, SPLASH!! I landed in the beautiful pool at GTAC. As I looked back up to the burning room I saw an explosion so big it nearly set the whole entire building on fire. Just joking none of the happen this was all just one big dream.
Question 1: Why don’t some metals rust?
Some metals rust because some metals absorbs water therefore the oxygen atoms get attracted to the water on the metal. This will cause it to rust.
Question 2: Why does it take some things longer to rust than others?
Some metals take longer to rust because some metals absorbs water and oxygen longer and other don’t take as long. For example bronze, steel and copper rust faster because it absorbs oxygen quicker.
Question 3: Why do some materials rust?
Some materials rust because of a chemical reaction from the water and the oxygen. The reaction is caused by iron being exposed to water and moisture. This is sometimes called ‘Corrosion’. When things rust it becomes flaky and crumbly.
Question 4: What does rust look like?
When something is rusted the exterior of the object looks very rough. It also looks red and very flaky.
Question 5: How can rust be prevented?
There are many ways to prevent rust now days. From painting it to oiling it. In usual households people tend to paint there things to prevent it from rusting. For example people paint there car to prevent rusting.
Question 6: What types of metals rust?
There are three main types of metals that rust, bronze, steel and copper. But of course theirs other types of metals which rusts. Like silver which turns blackish when rusted.
Question 7: Does aluminium rust?
Unlike iron and steel, aluminium does not rust or corrode in moist conditions. Its surface is protected by a natural layer of aluminium oxide. This prevents the metal below from coming into contact with air and oxygen.
Question 8: How does rust work?
Rust is the common name for a very common compound, Iron Oxide.There is a chemical called Fe2O3,Fe2O3 is common because iron combines very readily with oxygen — so readily, in fact, that pure iron is only rarely found in nature.
Fair Test and Rusting experiments
Aim: To find out if rust can be prevented from paint.
- Paint brush
- Red paint
- 500 ml of salty water
- 2 beakers
- 2 large screw
1. Coat one of the screws in red paint with a paint brush and come back when the paint is dried.
2. Fill each beaker with 250ml of salty water.
3. Place the painted screw in one beaker with the salty water and the screw without the paint in the other beaker with the salty water.
4. Come back the next day and see if theirs a difference.
Fair test table:
What the large screw is coated in.
The amount of rust that has formed on the large screw. The surface area that is covered is what will be measured.
Amount of time left in the salt water. Temperature of the salty water.
Amount of light shining on the beaker.
The large screw with nothing on it is placed in salty water.