Category Archives: Science 9

SMART Goals Reflection

  1. What was your goal?

My goal was to take 5 minute showers

  1. Did you achieve it? How or how not?

To achieve it I took note of the time before getting in. After I shortened the amount of time I spent rinsing the soap off because before it took me way too long. I made sure that I spend as little time as possible in the shower.

3. What was the most challenging part of achieving your goal?

The most challenging part was making sure I clean myself properly. 5 minutes isn’t very long, so I had to make sure I can get everything done. After the first few times it got easier.

4. What would you do differently next time?

What I would do next time is have a clock inside the bathroom to make it easier to keep track of time to have an accurate reading of how much time I spend inside the shower.

5. Will you continue on with this type of goal? If you do, explain what you will do. If not, explain why you are satisfied with where you are at.

I will continue with the goal. It doesn’t seem too hard now and it will help with the environment.

How Things Work -Oscillating Water Column

In science we made a 3-D model of a Oscillating water column, a power generator that uses wave power.

Below is the 3-D model and two pictures with colour and more details.

How things work model 3-D

  1. What problem is your technology trying to solve?

The oscillating water column was created to make a good renewable energy source that won’t do any harm to nature and doesn’t use up our resources.

  1. Form and Function: What are its main parts and what do the parts do? How does it use or generate electricity? How do electrons move through it?

The structure consists of a big chamber, the walls of the chamber have an opening under water. The wave energy travels underwater into the chamber pushing the air in it up. The air goes through a turbine spinning it. When the water recedes, the air is sucked back in spinning the turbine once again. The turbine then creates electricity.

  1. What are the social implications? (How does it affect people?) Consider less developed countries and locations with different climates or geography.

The oscillating water column makes a lot of noise and can disturb people living nearby. This generator has to be on the shore, so it cannot be constructed inland. It also cannot be constructed somewhere protected from the waves.

  1. What are the environmental implications? (How does it affect the natural world?)

This form of energy is safe for wildlife. The only problem is that it makes a lot of noise that can disrupt wildlife, this problem would probably affect only species that live on ground. There are no moving parts in the water, so no animals will get injured by it. The structure itself acts like an artificial reef and can act like a home for certain animals.

  1. Given the strengths and weakness of your technology, is it a satisfactory solution to the problem it is trying to solve?

It is a good solution, it can supply towns further away from the shore, connecting the station through wires further away, but not too far. It also greatly benefits islands which are too far out to be connected to land. It causes no harm to wildlife and it won’t disturb you unless it is next door. It also doesn’t pollute, and it uses wave power, which is created by wind, which is created by the sun, so it will never run out.

Core Compentencies

A Fresh Look at the Periodic Table

Define and discover

We restated our task as: Reorganize the periodic table in a different way that will still show the same patterns.

Some of the questions we asked to help us achieve our goal are:

What are the patterns in the periodic table?

What are other ways the periodic table has been arranged?

What is the bottom part of the periodic table?

Dream

What information does the periodic table tell you?

Metals, atomic number, atomic mass, reactivity, families

How could you arrange it differently based on its chemical and physical properties?

You can arrange it by reactivity

What different shapes could be used?

Circle, like a character, rainbow, pyramid

How can you use colour?

Families, state of matter

Design

Deliver

Our periodic table was made so that it will be easier to read. There is no longer a big gap in the middle which can make it  a bit hard to read and the rare metals are now included in the table itself so it doesn’t skip over them. All of the elements are placed in order by atomic number and in columns depending on the number of shells. The two columns the most at the right where split in two because they took up too much space. A line connects them to show that they have the same amount shells. The families are represented by different colours and are at the same part of each column all the time, all noble gases are at the bottom end of their column, all alkali metals are at the top, alkali earth metals are just below them, halogens are in between the noble gases and metal dividing line, Transition metals are at the other end of the metal dividing line and the rare metals are only in the two columns at the right and in the middle of them.  The table is split in two to show metals and non-metals, hydrogen is in the middle as it has properties of both.

Debrief

One thing that could’ve helped us would of been time, we didn’t have much time, so we had to go with our first best idea. We also had little time to develop a plan and ways to improve our project. One thing is that a few of the elements are sitting alone on the side, so they might be hard to notice. If we had more time we could’ve organized the table in ways to show more patterns.

 

Wonder Project

How Did Life on Earth Start?

How did life on earth start is a big question that has been asked a lot and that is unanswered. There are many different theories for this and I decided to research some of those.

The first one says that life appeared on earth in just an instant. Earth was covered in electrical storms and the atmosphere was full of plasma. When a strong electrical current hits two electrode, a powerful conductor often non-metal, it would cause a reaction which would make a sphere. Each of these spheres has two outer layers and a nucleus in the middle made of gas. These spheres had all of the characteristics of any living cell. It has an outer layer, it can reproduce by splitting in two, it can take other atoms and use them to increase its size and it can communicate by sending out energy. These spheres were made in labs making this theory very possible.

Another possibility says that asteroids brought life to earth. During earth’s early years many asteroids hit, these could have carried microbes to which then evolved into modern life. Scientists believe that Mars would have been more hospitable to RNA, an early form of DNA, which is essential for life. Similarly, asteroids could have brought life some of the ingredients for life. They brought chemicals which then formed along with other chemicals on earth would form RNA. These meteors were launched off of other planets by other meteors crashing into them.

On of the most likely possibilities is that life formed in hydrothermal vents. Alkaline which is rich in hydrogen grow around these and along with saltwater, other minerals and the enormous heat that comes out of them helped create life. They are mainly made out of carbon, oxygen and hydrogen, they created chains, then got a metabolism, using acids created by the vents to get energy and then lastly, they got genetic codes. So, this process transforms inorganic materials into organic ones.

 

This video explains another way that life could have started.

ADL 10-Information Fluency

1) What were the conditions on earth like 3.7 billion years ago? What defines life? What conditions does life need to live?

2) I used Gale Engage Learning and Ebsco.

3) I searched the questions then I looked at the results, if no good answers appeared I would reword the question.

4) The tools I used had good information, the teacher told us that they are reliable. I used the citation tools on the website.

5) I didn’t remember the ways of wording the questions that were good so every time I had to find a good way of wording it again. Otherwise it went pretty well.

Citations

Elling, Henrik. “3 supercontinents brought Earth to life.” Science Illustrated, Jan.-Feb. 2013, p. 48+. Science in Context, http://link.galegroup.com/apps/doc/A312968744/GPS?u=43riss&sid=GPS&xid=ace2751b. Accessed 1 Feb. 2019.

Cohen, David (Dutch activist). “Plasma blobs hint at new form of life: can life arise in an instant, in a burst of electrical energy? Researchers recreating the atmosphere of the early Earth have made ‘cells’ that reproduce and communicate. But they’re made of gas …” New Scientist, 20 Sept. 2003, p. 16+. Science in Context, http://link.galegroup.com/apps/doc/A108264960/GPS?u=43riss&sid=GPS&xid=90090427. Accessed 1 Feb. 2019.

“No Panspermia Between Stars.” Sky & Telescope, May 2000, p. 23. Science in Context, http://link.galegroup.com/apps/doc/A61591296/GPS?u=43riss&sid=GPS&xid=92489ae1. Accessed 4 Feb. 2019.

Bartels, Meghan. “How Did Life Start? Meteorites Crashing Into Darwin’s Warm Little Ponds May Have Been Trigger; It’s one of the biggest questions in science today–which means there’s lots to argue about.” Newsweek, 27 Oct. 2017. Science in Context, http://link.galegroup.com/apps/doc/A510446453/GPS?u=43riss&sid=GPS&xid=0d2e839a. Accessed 4 Feb. 2019.

S.P. “Cooking up a key chemical of life.” Science News, 9 Sept. 2000, p. 175. Canada in Context, http://link.galegroup.com/apps/doc/A65860859/GPS?u=43riss&sid=GPS&xid=f8aedf3b. Accessed 5 Feb. 2019.

Nitschke, Wolfgang, and Michael J. Russell. “Hydrothermal Focusing of Chemical and Chemiosmotic Energy, Supported by Delivery of Catalytic Fe, Ni, Mo/W, Co, S and Se, Forced Life to Emerge.” Journal of Molecular Evolution, vol. 69, no. 5, Nov. 2009, pp. 481–496. EBSCOhost, doi:10.1007/s00239-009-9289-3.

Sarchet, Penny. “Life’s True Cradle. (Cover Story).” New Scientist, vol. 238, no. 3182, June 2018, p. 30. EBSCOhost, doi:10.1016/S0262-4079(18)31066-2.

Lane, Nick. “Life: Inevitable or Fluke? (Cover Story).” New Scientist, vol. 214, no. 2870, June 2012, pp. 32–37. EBSCOhost, doi:10.1016/S0262-4079(12)61633-9.

McGowan, Kat. “Where did it all begin? A new geological finding stirs questions–and controversy–about where and when earliest life emerged.” Popular Science, Sept.-Oct. 2017, p. 38+. Science in Context, http://link.galegroup.com/apps/doc/A501246379/GPS?u=43riss&sid=GPS&xid=a8e1360e. Accessed 6 Feb. 2019.

“Mars May Have Had Better Chemistry than Early Earth for Life to Start.” UPI NewsTrack (Consumer Health), Aug. 2013. EBSCOhost, search.ebscohost.com/login.aspx?direct=true&db=c9h&AN=6E8744905837&site=ehost-live.

SIMPSON, SARAH. “Life’s First Scalding Steps.” Science News, 9 Jan. 1999, p. 24. Science in Context, http://link.galegroup.com/apps/doc/A53630867/GPS?u=43riss&sid=GPS&xid=8ca1270a. Accessed 6 Feb. 2019.

Images

https://pixabay.com/en/bacteria-germs-microbes-medical-1959389/