Year 8 Nutrition

Nutrition_mindmap_JG
James’ Mindmap using Bubbl.us and Clipart.

Your first task today is to create either a Bubbl.us (or paper) Mindmap or a (virtual or real) Poster reviewing what we learnt yesterday. The title is Nutrition and you need to include each of the five nutrients, with what they are made up of, why they are needed and at least five examples of each food type. Post your finished product on your blog and send the link to my gmail address. When you have finished check out this activity from BBC Bitesize: Nutrition.

Nutritional Information panels contain data about the amount of energy (measured in kilojoules), carbohydrates, proteins, lipids, vitamins and minerals in packaged food. They are compulsory in Australia and give consumers information about their the food they are purchasing and consuming. You will have a variety of packages to read, interpret and record the data in the Google Document at this link:

Nutritional Information of Food Products

This is an interesting interactive from PBS that demonstrates how different nutrients are used in your body.

Next week, while you are on camp, I would like you to keep a food diary, to work out how many kilojoules you consume each day. For each day, you need to record the quantity and type of each food you eat for breakfast, lunch, dinner and snacks. When you get back from Apollo Bay, we will do some food tests to investigate what types of nutrients are in different foods, so make sure you bring in a small sample of food to test. These are the tests we will be doing:

1.Brown paper or Emulsion test for fats and oils (lipids).
2.Iodine test for starch.
3.Benedict’s solution and heat for glucose (sugar).
4.Copper sulphate (10 drops) and sodium hydroxide (5 drops) for protein.

Investigating Elements

 

Atom and hands machine drawingphoto © 2010 Bascom Oswald Hogue | more info (via: Wylio)

 

 

 

 

 

 

 

The drawing above is from Wylio,  a great place to search for free-to-use images for your blogs and wikis. It shows a diagram of the model of an atom, with a central nucleus and the path of three electrons around the outside. Elements are pure substances consisting of just one type of atom. Compounds are made up of molecules that consist of more than one type of atom. All the known elements are arranged in the periodic table in order of their atomic number.

elements_appDuring today’s lesson we will be looking at a range of different elements and describing them. You will use the Google doc, “Investigating Elements” to record your results. Click on the link and download the document onto your computer. There are 14 different elements to observe and complete each column – name, symbol, atomic number, description and what you might find that element in. We will also have some time this week to use the iPads to investigate “The Elements” app, which has amazing interactive images of each of the pure elements and extensive information about each element. This app can be purchased through the iTunes store for $13.99.