Archivo por meses: junio 2019

Using The Bunsen Burner Safely

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Thursday 25th) with Ceci we used the bunsen burner. These are the steps we followed.

AIM: In this investigation, you will learn the parts of the Bunsen burner and their functions. You will also learn how to use the burner safely in the lab.

Method

  1. Close air-hole
  2. Turn the gas tap and light the burner.
  3. Record the results  ( colour of flame )
  4. Open air hole slowly until it is half-closed open and record results
  5. Open it completely and record results
  6. Place a tripod and gauze on the burner
  7. Place a beaker with 50 ml of water
  8. Heat it with the air hole open
  9. Take the time until the water starts boiling
  10. Change the beaker and water and heat it with the air – hole closed
  11. Take the time until the water boils

This is a video from us using the bunsen burner :

https://youtu.be/mQWzJsqebN0

TABLE OF RESULTS: 

invertebrates chart

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Class Hábitat Legs Wings Antennae Body divided into
Insects Dry places 3 pairs of jointed legs 2 pairs of wings Some have antennas the ones that have, have 2. Head, thorax and abdomen
Crustacean Wet places More than 4 pairs of legs They do not have do not have antennas
Arachnids Land-dwelling 4 pairs of jointed legs They do not have do not have antennas Head and body
Myriapods They live in many places depending on the species Each segment has jointed legs They do not have They do not have antennas Divided into many segments