Year 8 Science Flashcards
1
Q
If starch is present in a substance what colour will the substance turn? (iodine test)
A
From orange to blue / black
2
Q
If ethanol is present in a substance what colour will the substance turn? (ethanol and water)
A
From clear to white emulsion (cloudy)
3
Q
Is protein is present in a substance what colour will the substance turn? (biuret solution)
A
From pale blue to purple
4
Q
If sugar is present in a substance what colour will the substance turn? (benedicts solution)
A
From blue to orange
5
Q
What does the large intestine
do?
A
Re-absorbs the water so we don’t get dehydrated
6
Q
Name the two accessory organs.
A
Liver and pancreas
7
Q
What are the two types of digestion?
A
Mechanical and chemical
