| |
Question: What will happen if we mix raisins and ginger beer? Hypothesis - We predict that these things could happen: - It could produce a gas - The raisins might dissolve - The ginger beer will fizz up and form a gas - Raisins might blend into ginger beer so that you can't see them - It might make the raisins taste bad - There will be a raisin explosion - The raisins might shrink - The ginger beer might change colour - The raisins could float - It might make a yummy drink - The raisins might expand - It could create a new substance Equipment/Materials: - clear glass container - ginger beer - 5 raisins Method 1) Fill the container with ginger beer. 2) Drop the raisins into the ginger beer. 3) Watch what happens! Why does this happen?
Carbon dioxide is dissolved in soft drinks and gives them their fizz. The raisins are denser than the liquid so at the start they sink to the bottom of the container. The fizzy drink releases carbon dioxide bubbles and these bubbles stick to the rough surface of the raisin. The bubbles act as a life jacket and lift the raisin to the surface. When the raisin reaches the surface the bubbles pop and the gas escapes into the air. This causes the raisin to sink. The rising and sinking of the raisins continues until most of the carbon dioxide has escaped and the fizz goes flat. Have a go at one of these science experiments as part of your homework. Some of them you will need an adult to help you. Click on the picture and it will take you to the experiment. Write up your experiment using the headings we have been using in class. An example of an experiment written up is in the post below. 1) Question 2) Hypothesis (prediction) 3) Equipment and materials 4) Method (what did you do) 5) Results (what happened) 6) Why did this happen? (the science behind it) 7) Conclusion (what did you find out, what would you change) Today we did an experiment to find out more about gases. Check up or experiment write up and photos below. We watched this video today and took notes in a graphic organiser. This is what we found out...
What is Matter? Everything that takes up space on earth is made up of matter. Matter is made up of tiny atoms (too small for you to see) joined together to make molecules. Matter can be grouped into 3 main states – solid, liquid or gas. Which one it is all depends on how the atoms are put together. We did this activity independently at the start of the week so that Miss Taylor could find out what we knew about solids, liquids and gases. Here are some of our results:
1. Solids 18 people drew ice cubes icicle tap 2. Liquids 14 people drew water in some form 3 drew jelly 2 drew a puddle dishwashing liquid the sea bubbles can of soft drink 3. Gases 10 people drew steam 4 people drew petrol Some other ideas were; mist, evaporation, air, fog, oil, clouds, puddles, dangerous gases |