Tag: Science

How Fossils Are Made

Hello Readers

Over the last 2 science lesson we have been learning about what are fossils and how fossils are formed, and our task was to create a animation/cartoon, about how fossils are formed.

What Are Fossils & How They Are Formed?

Fossils are the preserved remains, or traces of ancient organisms, plants, animals, and microbes, that are generally over 10,000 years old or older. There are two types of fossils, Trace Fossils like Dinosaur footprints, and Bone Fossils which are the bones of animal that bones have been turned into rocks and later put into museums if found by human beings.

Once a something dies its quickly buried with sediment then after a long period of time it gets compacted with a lot of soil, after that the bones gets turned into rocks, to become a fossil, then after millions of years. Humans will find it then it’ll be in the museum for a long time.

This took me a very long time to do, I hope you liked it and a good rest of your day Bye.

Walking Water Experiment

Hello Bloggers

Over the past two weeks we have been doing a science experiment called Walking Water Experiment. We learned about Capillary Action. What is Capillary Action?

Background

Capillary Action is a natural way of letting water ‘climb’ upwards, even thought gravity is trying to pull it down. Its the identical reason why, if you dip the corner of a paper towel into a spill, the water travels up the paper before you even move your hand.

Hypothesis

The paper towel will be the fastest at capillary action and the normal paper will be the slowest because of the different materials.

What you need to do this experiment:

  • Beaker or cup of water
  • Food colouring
  • Stopwatch or timer on Chromebook
  • Safety Goggles
  • Paper towels (for spills)
  • Scissors
  • Paper Clip
  • Ruler

Strips of test materials (same size)

  • Paper towel
  • Printer paper
  • Fabric strip

How to do the experiment:

  1.  Fill a beaker with coloured water – 100mls
  2. Cut you three different materials into identical strips
  3.  Then put the 3 different materials into the liquid
  4.  Start the timer for 10 minutes
  5. After 10 minutes take the material out of the test tubes and use a ruler to measure how many millimetres the water climbed up each strip

Results (Results are all in millimetres)

Link

Discussion

  1. Why do you think the water climbed higher in some materials compared to others? 

I think because of the different materials and how thick and light its is. The paper towel was very thin and light and I think that is how it         had the fastest capillary action.

2.        What did you notice about the texture or thickness of the winning material?

I believe that the texture and thickness of it made it the winning material. Because of the thinness of the paper towel.

3. If we had used honey instead of water, do you think the results would be the same? Why or why not?  

If we would have used honey I think it would not work well because of its dense and gooey form.

4.  Imagine if one student pushed their paper strip all the way to the bottom of the test tube, while another just let the               tip touch the surface. Why would that make the results “unfair”?

I think if that happened that would be unfair because it gives an advantage and rigs the win.

5. Can you think of any inventions or everyday items (not paper towels) that use capillary action to work?

I think tissues would work well because of its similar materials to paper towels.

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