week 14 blog post

LAB-


  • Filled Atmospheric CO2: Over time, the values are increasing. Mauna Loa Seasonally is exponentially getting higher as the starting point is higher than the end point, which is closer to the current day.--

  • Science of Climate Change Video: 2020 saw the hottest climate ever. Hits the largest number of megafires. Megafires we have not always seen, but now it has become an annual thing. What is driving the rise in global temperatures? Albedo, Temperature, and Atmosphere.--

  • Greenhouse Gas: Greenhouse gases play a crucial role in regulating Earth's temperature by trapping heat in the atmosphere. Greenhouse Gases absorb and re-emit infrared light.--

  • How Does Global Warming Work? The Earth absorbs light from the sun. The Earth also emits light. Greenhouse gases in the atmosphere let visible light through but absorb infrared light. Due to climate change, methane has tripled in the last 100 years.--

  • Greenhouse gases like carbon dioxide absorb different infrared wavelengths.--

Textbook Reading-

"Global Climate Change"


  • Climate Change is known to be human-caused--

  • Humans have more and more over time relied on fossil fuels for energy --

  • I learned the following:

  • Fossil fuels: Energy sources that originated from ancient remains of decomposing organisms. The main fossil fuels are coal, oil, and natural gas--

  • Due to Climate Change, Earth's systems are out of balance- this has created positive feedback loops.--

  • Positive Feedback Loop: the process where one change triggers the next in a continuous cycle that encourages the initial change.--

  • Melting Sea Ice - affects not just the Arctic but the entire planet. air masses and ocean currents that carry the ice cooling effect to other parts of the planet.--

  • It was most helpful seeing the graphs and tables that showed how the Arctic Sea/Ocean worked. I could apply the content I just learned about to what I saw through the visuals.--

Lecture:

 

Why do certain gases cause the greenhouse effect? Because certain gases trap heat in the Earth's atmosphere.--

Test- Cumulative Exam: 40 questions (20 climate, 10 space, 10 earth). **The carbon cycle is not on the exam.**--

Climate, Before the Flood, Weather vs Climate, How will Iowa (Midwest change?--

Impact of climate change on phenology (natural events), Greenhouse gases and how they work, Carbon dioxide and plants, Water Cycle, Glacier (continental and oceanic) melting impact, why do we have seasons??? Because we are having a tilt in the Earth, Public vs scientific perception on climate change, the Albedo effect, and ocean currents--

- Plants absorb carbon dioxide.--

- The spike in levels spiked because plant life gets buried, which is later converted into other things.--

CO2 Changes: Time when all of a sudden plants started coming, and then something happened, and then it stayed in a lower region. Temperatures have also changed over time (temperature inferred from oxygen isotopes in phosphate minerals).--

Albedo Effect: A Person wearing black clothing gets warm, because darker clothing ABSORBS heat. Lighter clothing REFLECTS heat. --


Some Questions--

- How does the albedo affect climate?
- How does the GH effect interact with the albedo effect?
- Is the albedo effect a positive or negative feedback loop?

*A high albedo means something is more reflective, a low albedo means something is less reflective, so it will absorb more radiation*

Positive/Negative Loops: Does it make the problem worse, stay consistent, or does it make it severely worse? --

Continental Glaciers --

Comments

Post a Comment

Popular posts from this blog

week 3 blog post

Image
What we did in Monday's Lab : talked about how can we support play that is exciting but not dangerous but this time in the lab we primarily focused on the question of what affects a rider's speed down a slide? By table group, we ended up putting this question to the test where we designed and conducted our own investigation where we also were to support everything with evidence when we could as well. I took away and learned that, What could affect variables of speed down a slide: - rider weight, slide material, rider clothing, initial force of push. for our investigation we decided to focus on slide material. - our question was how does the material of a slide change the speed of a rider? we found that the smoother the material the faster the object would move. The materials we used were wood, plastic, foil, and ceran wrap. This was an interesting investigation that proved that different materials affect a riders speed. What we did in T hursday's Lecture : In the lectu...
Read more

Week 4 Blog Post

In the lab for week 4, we talked a lot about friction and forces. We were reminded that friction is the force that opposes sliding across a surface. Well, today we modeled the question in the lab through investigation in the lab that asked, "What affects how long it takes a swing to go back and forth?". So today in the lab we designed an investigation that had us test this theory out. My group claimed that the faster we push the swing the quicker it will go back and forth. We effectively proved that to be true with our data. We noticed that when we bumped the swing the time it took to go 10 swings took a lot longer then when we pushed the swing harder. In a lecture for week 4, we talked a lot about force and Newton's First Law. I was reminded that Newton's First Law states that without an external force, an object will maintain its speed and direction of motion. Then we went into Newton's second law. Newton's Second law states that larger masses are harder to ...
Read more

Week 7 Blog Post

Image
Lab : In the lab for week 7, we were designed to physically build a model of the sun, moon, and the four inner planets. We were instructed that this needed to be by scale. The hardest part was getting each of the planets, the sun, and the moon to be the exactly correct size that it would relate to in real life. We then had to space out all 6 of those in the correct distance that it would be in real life as well. After lots of errors and trials, we finally got all 6 of them to the right distance. Overall, I take away from this investigation just how spread out the moon is from the sun. It was a good way to hands-on work on this by visually being able to tell how spread out everything truly is. Weekly Textbook Reading : Our Solar System- The four inner planets are Mercury, Venus, Earth, and Mars. They are all considered rocky planets because they have a solid outer surface, this was a helpful reminder once again. It was most helpful reading on the section regarding the Sizes and Distance...
Read more