Climate Change Blog Post - Science

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Currently, in Science, we are learning about Climate Change. 

What Is The Green House Effect?

The greenhouse effect is one of the reasons the earth's worldwide climate is rising (global warming). Usually, solar radiation comes through the atmosphere and some of it is absorbed by the earth's surface. And then the solar radiation is reflected from the surface and atmosphere. But, greenhouse gases can prevent this. While most of the solar radiation is reflected, some of it is reflected back to earth and bounces back and forth between the surface and the greenhouse gases. Kind of like a game of ping pong. Except for this ping pong continuously heats up the earth's surface when it is absorbed.

Effects Of Global Warming

• Disease- Disease may spread because certain pests and bacteria can survive hot, wet temperatures.
• Weather Patterns- Seasonal and regional weather patterns could change dramatically. There could be more and more frequent and stronger cyclones, storms, and rain.
• Seal-level Rise- Towns on the coast would be in grave danger. They'd go from being suburbs to swamps. Roads and railways would be flooded.
• Rainfall- Intense rainfall could lead to flooding of rivers and streams, maybe even flash floods.
• Agriculture- Certain areas may not be able to grow individual crops. 

What Is The Solution?

Biofuels. The way we can use biomass to fuel cars, rather than actual fuel. Biofuels is an organic type of fuel we can make- which is a lot quicker than the slow geological formation of fossil fuels like oil and fuel. 

Volcanoes - Science

Currently, we are learning about volcanoes in Science. We've done a lot of research on our blog topic which was to choose a volcano (worldwide) and learn about it. I chose...

Mount St. Helens

How do they form?

Volcanoes are formed when magma rises up from the mantle and reaches the earth's surface. Eventually, the magma (turned lava) will cool down and turn back to rock. It will continue this process and over time, so much rock would have hardened itself to form the mountain of the volcano.

Where is it located?

Washington, USA.

When did it last erupt?

10 July 2008 

How much damage was caused?

In 1980, a chunk in the side of the mountain collapsed, 57 people died, thousands of animals died, more than 200 homes were destroyed, 297 km of road and 24 km of railways were covered. But in 2008, there wasn't as much damage. 

Not too long ago, we chose our teammate's mountain (Mauna Loa) and created it out of 'paper mache'. We needed 4 spatulas of potassium iodide in 20ml of water, 35% of hydrogen peroxide, dishwashing liquid, green food clouring, and gold glitter. Reaction:  H₂O_2 ---> H₂O + O₂ 

Here's the video of our volcano erupting:

Science - Model Atoms

Aim: To make a model atom
Equipment:

• Paper
• Tape
• Beads
• Blue Tac
• String 

Method: First I gathered the number of beads needed to represent protons and neutrons, and glued them together with blue tac. And then I cut out circles of scrap paper to make the shells and drew dots to represent electrons. I then put it all together with tape. The result I ended up with is below. 

Results:

Discussion: The three main particles are protons, neutrons, and electrons. Electrons are found in the shells/orbitals, and protons and neutrons are found in the middle in the nucleus. Electrons are the smallest and protons are the biggest. The charge of each particle; protons are positive, neutrons are neutral (no charge), and electrons are negative.  

Observations of a Burning Candle - Year 9 Science 2018

 My Observations:

• The tip is red
• The wax is melting
• The wax goes clear when melted
• The tip is burning and turning black
• It is in the shape of a teardrop
• It has a little bit of blue at the bottom
• it moves around because of the wind and people moving

9 Ak Science 2018

My name is Paige.
One thing I want to do in science this year is cool experiments. 
I think 2018 will be a cool year for science.

Should We Keep Cats Indoors?

Should We Keep Cats Indoors?

Why Should We Keep Cats Indoors?

As you can see from the picture below, cats are well known predators. They hunt rabbits, birds, rats, mice, lizards etc. I'm not sure if we should keep them inside, because they need to explore like us. But we could keep them secured in the back or front yard. And make sure they can't get out from under or over the fence.