June 24 2016

TERM 1 REFLECTION

I have improved in my reading area I can identify the main idea also I have improved in my Numeracy because I can use the area model confidently. And I am also very confident with problem solving. I also know that in the parliament the party with the most members gets to form parliament and when a bill needs to be passed in goes through the house of representatives then it goes to the senate and then it goes to the governor general to become a law.

June 22 2016

FREEZING OIL

In science, Lilly and I are doing a science experiment on freezing oil. Our science topic is chemistry/ changing matter. The year 5 standards is on our teacher’s blog and the rubric on what we are going to be assessed on is this document – Science-Experiment-Lab-Report-Rubric.

Aim: To see if the viscosity of oil will effect it from freezing and to observe if the viscosity will affect whether it is reversible and the speed.

Hypothesis/prediction: We predict that the viscosity of the oil will make the oil freeze at a very cold temperature and it will take a longer amount of time compared to the water. The viscosity is thick which will affect the way that it is freezes. It will melt slower because the thickness might take longer to get back to its original state.

This is a method download.

Observations: 

First taken out of freezer oil looks like butter

Both melting very quickly, water melting faster

Oil started melting very quickly faster than water

Oil took 22 minuets

Water took 32 minuets

Oil felt oily

Before                                                                            After

b        a

Discussions: Oil is a lipid. They freeze at a very cold temperature after a long period of time because lipids can nearly stay in the same form no matter what the temperature unlike water. Lipids don’t have a significant  freezing or melting point. They will slow down or stop depending on the temperature. The lipids caused the oil to freeze because our freezer was -10 degrees Celsius

Conclusion: Our prediction was that the frozen oil cubes would melt slower than the ice cubes but it did the opposite. The oil cubes melted 16 minutes faster than the oil cubes. This happened because of the lipids in the oil. They do not need a lot of heat to get to their back to their original state. We also predicted that the oil would freeze and it did. A future experiment we think we could do is a ice experiment we found on the internet. If you would like to do it this is the website – ice experiment

Our glossary is this document – Glossary

THE END THANKYOU FOR READING