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Examine the Parts of a Flower. Describe Their Position, Color and Size

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GAC013 Assessment Event 4: Assignments

Science Report for Task 1.1

Student’s name: Oliver (Li Shunyan)

Student ID:

Teacher: Peter

Due Date: 24 January 2016

Word Count:623


Q10: Examine the parts of a flower. Describe their position, color and size. (Biology)

[pic 1]

The color is depends on the kind of the flower.

Q11: Play a musical instrument. How does that instrument create the sound? How can you change the sound it makes? (Physics)

Phenomenon:

When I blow into the cavity, the cucurbit flute will create it sounds. When I change to put my fingers at different cavities, it will create different sounds.

Reason:

As we all known sound is a physical phenomenon produced by the vibration of matter, such as a violin string, or a cucurbit flute. The sound of it is created by air impact reeds, reed vibrations, and at cause resonance vibration at its cavity. When we want to make different sound, it means we are going to change the length of the column of air. Different length of the column of the air will shock to create different sounds.

[pic 2] [pic 3]

Q3: Hard boil an egg and describe the differences between it and a raw egg. Spin both types of egg on a table top and describe what happens. (Biology and physics) [pic 4][pic 5][pic 6]

Phenomenon:

I found that the hard-boiled egg spins faster and longer than the raw one.

These two eggs are with same weight and same size. The force I use to spin them are nearly the same. And also the time I began to spin them is same.

Reason:

Raw eggs turned slowly than hard-boiled egg based on physical mechanics principle: inside the raw eggs, the egg yolks and protein is liquid. When we turn the egg shell to spin, the inside of the egg, due to inertia effect, will keep the original state of rest. Rotation will disperse the force, so the raw eggs spin more slowly. On the other hand, the cooked eggs yolks and protein is solid, and has already become a whole egg shell, when we turn the eggs, each part will  rotation together and   will be focused.

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