Term 1 Week 5 2020

Human Digestive System

Rat Dissection in Lab A comming soon

Rat Dissection by Charlotte Jess and Destiny

How your digestive system works

Inside the Stomach

Pill Camera Swallowed

Tapeworm Infestation

What does the liver do?

What does the pancreas do?

How do your Kidneys do?

How the heart actually pumps blood

The Heart, Part 1

Heartbeat sound

Transporting a beating heart for transplant!

How do vitamins work?

How sugar affects the brain

What is fat?

How do carbohydrates impact your health?

Food Tests

Food TestsFood Tests:

Test	Tests for	Positive Result	Method
Iodine	Starch	Turns Blue-Black	Add a drop of iodine to food solution
Biuret (CuSO4 + NaOH)	Protein	Turns Purple-Lavender	Add a few drops of copper sulphate (CuSO4) shake and wait, then and sodium hydroxide (NaOH) to food solution
Benedict’s Solution	Sugar	With heat turns Brick-Red precipitate	Add a few drops of Benedict’s to food solution and heat gently of a bunsen
Ethanol Emulsion	Fats	White Emulsion	Add 2ml of ethanol to food solution and shake/mix, then add 2ml of water to solution and shake/mix
DCPIP	Vitamin C	Turns Colourless	Add a few drops of DCPIP to food solution and shake/mix then wait (NB: will turn pinky due to the presence of acid - false positive)

Term 1 Week 4 2020

Paper Dart Testing

In groups of three, you are going to try making a range of different paper darts and test how they perform in practice.

You are going to change the type of dart you make,
and also the length of the dart.

To test the darts, you will throw them in a repeatable way,
and measure two things.

You are going to both measure the distance it travels before it

touches the ground (not necessarily where it lands)

and the time it spends in the air before it hits the ground.

Below are some dart designs, choose two to test.

Basic Dart

Flat Nose Dart

Glider Dart

Dart Floating