It's a MS Paint pic.

Answers

Saw the questions, yah? Now the answers...
Section A
1.C
2.A
3.B
4.B
5.D
6.A
7.C
8.C
9.B
10.A
11.B
12.B
13.D
14.B
15.A

Section B
1. scientific, background, systematic, record, clear/open
2. I. Close the air-hole.
II. Light a match.
III. Place the match near the collar.
IV. Turn on the gas .
3. A strike-back occurs when the gas is burning at the jet.
4. I. Controls the amount of air in the Bunsen burner.
II. Secures the burner so it does not topple down.
III. Raises the fire to the suitable height for heating.

Section C
1. A non-luminous flame, because it is steady and produces no soot.
2. We should wear goggles and point the test-tube away from anyone.

Well, the answers. Signing off, Anthony

Science – Scientific Enquiry

1. Science
- Science, study, natural things, everywhere.
- Various branches, chemistry (chemicals), physics (nature, matter), biology (living things), life science (Study, genes).
2. Scientific Method
- Way, scientists, find out, things
- Make observations, five senses
- Systematic thinking, make inferences, experimental evidence
- Record information, analyse results
- Draw conclusion
- Keep mind, open, curious, eager to learn
3. Lab safety rules
- Wear goggles, heating
- Point test-tube away
- Dispose leftover chemicals
- Don’t eat/drink in lab
- Report breakage/spillage/accident
- Read instruction carefully, ask if in doubt
4. Symbols
- Skull: Toxic substance
- Flame: Flammable substance
- Test tube, hand and a block: Corrosive substance
- Circular stuff: Radioactive substance


5. Uses of apparatus
a) Retort stand – to support the apparatus during experiment
b) Tripod stand – to support the apparatus while heating
c) Filter funnel – to separate a solid from a liquid with the help of a piece of filter paper
d) Beaker, Conical flask – to contain chemicals and for carrying out reactions during an experiment
e) Test tube – to contain a small amount of a substance during an experiment
f) Measuring cylinder – to measure the volume of liquids
g) Gas jar – to collect gases
h) Water trough – to contain water during an experiment; especially when preparing gases
i) Test tube holder – to hold the test tube during heating
j) Evaporating dish – to evaporate liquids

6. The Bunsen burner
- Named after Robert Wilhelm Bunsen, a German scientist
- Parts of a Bunsen burner
a) Barrel – to raise the burner to a suitable height for burning to take place
b) Collar – to control the amount of air entering the barrel
c) Air hole – to allow air to enter the barrel
d) Jet – to allow gas to rush out to the barrel
e) Base – to support the burner
f) Gas tap – to control the amount of gas entering the barrel

- Differences between luminous and non-luminous flame
- First will be luminous, next will be non-luminous
a) Orange colour, not very hot / Blue colour, very hot
b) Produces soot / Does not produce soot
c) Unsteady / Steady
d) Not suitable for heating / Suitable for heating

7. Srikeback
- Too little gas, too much air
- Gas burns at jet instead of top of barrel
- Burner becomes dangerous, hot

Section A: Multiple Choice Questions
1. The ____________ of the Bunsen burner controls the amount of air entering it.
A. Base
B. Collar
C. Air-hole
D. Jet ( )

2. Which of the apparatus is used to seperate solids from liquids using a filter paper?
A. Filter funnel
B. Tripod stand
C. Conical flask
D. Evaporating dish ( )

3. Safety goggles prevent injury to one’s __________.
A. Mouth
B. Eyes
C. Ears
D. Hands ( )

4. The contents in the bottle are labelled ___________.
A. Flammable
B. Corrosive
C. Radioactive
D. Toxic ( )

5. In a “strike-back”, the Bunsen burner becomes very hot because ______________.
A. The air-holes are fully open.
B. The flame is the hottest.
C. All the gas is burnt completely.
D. The flame isd burning at the jet. ( )

6. Which of the following best describes a non-luminous flame?
A. Strong, steady and produces no soot
B. Sooty and steady
C. Orange in colour
D. Obtained when air-holes are closed ( )

7. The following are steps in lighting a Bunsen burner.
What are the correct sequences to lighting up a Bunsen burner?
I. Turn on the gas
II. Close the air holes
III. Light a match
IV. Place the lighted match above the barrel
A. I, II, III and IV
B. II, I, III and IV
C. II, III ,IV and I
D. I,III,II and IV ( )

8. Which of our senses do we use when observing the burning of a substance?
A. Sight, smell, taste
B. Touch, smell, hearing
C. Sight, smell, hearing
D. Sight, taste, touch ( )

9. When the air-holes are open, the flame is _________.
A. Luminous
B. Pale blue in colour
C. Unsteady
D. Sooty ( )

10. A “strike-back” occurs when there is _______________.
A. Too much air
B. Too little air
C. Too much gas
D. Too much soot ( )

11. To heat a substance strongly, we use a __________________.
A. Luminous flame
B. Non-luminous flame
C. Yellow flame
D. Sooty flame ( )

12. Which of the following is not part of the scientific method?
A. Observing
B. Plagiarising research notes
C. Inferring
D. Studying other scientist’s past research ( )

13. _________ is the branch of science regarding matter and energy.
A. Biology
B. Astronomy
C. Chemistry
D. Physics ( )

14. The yellow flame of the Bunsen burner is due to the glowing of ________.
A. The gas
B. Unburnt carbon
C. Copper
D. Sodium ( )

15. The apparatus used for measuring 41.3 cubed centimeters of liquid accurately is _____.
A. The burette
B. The pipette
C. The beaker
D. The round-bottom flask ( )

Section B: Structured Questions

1. Fill in the blanks.

The _____________________ method is the way scientists found out around them.
In their research, they study the ______________________ of work already done so as to build upon it. Using ________________ thinking, they proceed to make inferences based on the experimental evidence. Next they keep an accurate _______________ of their findings by refer to and build upon their findings. Nevertheless, they keep a ______________________ mind to any dispute as they are eager to learn.

2. List the steps involved in lighting a Bunsen burner.
I. ______________________________________________________
II. ______________________________________________________
III. ______________________________________________________
IV. ______________________________________________________

3. What is a “strike-back”? _______________________________________________________

4. State the function of the following parts:
(i) Air hole - ____________________________________________________
(ii) Base - ____________________________________________________
(iii) Collar - ____________________________________________________

Section C : Free- response Question
1. What type of flame should be used to boil a test- tube of water? State two reasons.





2. What two precautions should we take to protect ourselves and others while heating a test tube of water?

... I'll just type it out here...

Hi! This is Anthony speaking. Hey... Is this computer on? OK, then, I'm going on. (Clears throat and gets fingers ready)

|===| Prologue |===|

He runs around the little hut merrily, shouting out to the heavens. He is going to have a son! His wife is in the healer's house, getting ready to give birth. Then, he sees a faint black dot in the sky, and stares at it with full concentration. He makes out the faint outline of a man, wearing a cloak. Then, he sees him take something from his pocket, and shoots it at him. Suddenly, everything turns to black...
-=-=-=-=-=-=-=-=-=-=--=-=-=-===-=-=-=-=-=--=
It was a small hut.

The healer touches her forehead and says :" May your child have wisdom..."

Then went on to touch her heart. "...and may he have bravery..."

And lastly, went to touch her sinar plexus, unique to the magicians. "...and may he continue your dynasty of magic!" And she cast a spell on her.

Moments later, the healer takes the baby from the dead magician, and runs away, into the forest, where she will meet the dark-haired man to sell the baby...

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Xyler woke up from his bed, and finds about 5 people around his bed looking at him. He looks at them blankly, one by one, and wonders what the fuss is all about. Then, he looks at his Calendra, the latest model, and found out at last. It was his birthday! And then, he rubs his eyes, and... tries to go back to sleep. Then his mother drags him out of his bed. Of the many years he has been on this planet, he still could not understand his mother. He seemed like a different part of the family. While everyone in his family solved their problems with their fists and weapons, he could just think his way out of anything.

5 hours after the previous event

Xyler looked at the weirdly built building that his father and brother was taking him to. He stared at it hard and started to think.

"Xyler Vexis, 13 years old. He is here for his Apprentice Choosing. May I know where to take him?" My father's voice broke my train of thought.

"The Sun-Balcony. Please stay here while I escort him there. Sorry for the inconvenience." The machine-like thing grabbed his hand, and started to lead him to his ultimate destination. After all, birthdays were meant to be spoilt with weird trips, anyway...

|===| END OF PROLOGUE |===|

Pls feedback to me about this story, okay? thx ^^

Signing off

://Anthony\\:

The Magician's Final Disciple

Well, I have a lil' fiction here, so pls look for it, ok?

http://www.thependragonadventure.com/forums/index.php?showtopic=11313

Woohoo! A new blogskin, a new post!

Hallo, this is treemanpower signing in. This is a new blogskin, so I decided to delete all previous posts and put newer posts! Well, if this isn't good enough, leave me a message at treemanpower@ymail.com . Please do not SPAM my e-mail, or I'll SPAM yours.

Well, this was meant to just explain the reasons of why all posts were suddenly deleted. Okay?

Signing off...
Anthony