Science process skills – following a procedure (method)/prediction Practical: Blue Bottles An important skill in science and in your everyday life is to follow a procedure. In the following activity, you will be asked to follow a procedure and to record any observations. You will also be using some equipment and chemicals that you may not be familiar with. Safety What safety equipment will I need to use? Equipment: Beaker, spoon, glucose, sodium hydroxide, methylene blue, volumetric flask Literacy: In the box below, see how many other words you can create from the words sodium hydroxide. Write them in the box below. Aim: To make blue bottles Method: 1. Take a beaker and place 200 ml of water in it. 2. Take 3 grams of glucose and place it in your beaker. 3. Dissolve the glucose with a spoon. 4. Obtain 3g of sodium hydroxide from your teacher. 5. Dissolve this. 6. Pour the liquid into a volumetric flask. 7. Place a dropper full of methylene blue into the flask. 8. Leave for 2-3 minutes. In the box below, draw a diagram of your equipment. Now shake the bottle. Record your observations in the box below: Predicting: What do you think made the flask change? Making connections: In the box below, list other situations in which you would have to follow a procedure similar to the one you used today and where I could find out the everyday uses of sodium hydroxide Follow a procedure Where could I find out the uses of sodium hydroxide?
