[20分] Interactive Science workbook 1a

1.5Measurements in Science
A 1.T 2.F 3.T 4.F
B.Reading the scale
1.(a)(1)14cm3 (2)18.5cm3
(b)畫線題好easy(1)70線 (2)30線下一二線中間
2.(1)25g (2)37.5g (3)45g
3.(a)(1)24.6 (2)77
(b)畫線題好easy(1)80線和之後的線之間 (2)40線前一二線中間
C.Multiple Choice Questions
1.B 2.C 3.B 4.C
1.6 Conducting a Simple Scientific Investigation
A 1.F 2.F 3.T
B.(1)(a)Independent varibles
(b)Controlled variables
(c)Controlled variables
(d)Dependent variables
(e)Controlled variables
(f)Controlled variables
(2)(a)Controlled variables
(b)Controlled variables
(c)Controlled variables
(d)Independent varibles
(e)Dependent variables
(f)Controlled variables
Part 2
A.1.T 2.T 3.F 4.F 5.T 6.F 7.F 8.T 9.T 10.F
B 1.D 2.C 3.D 4.C 5.D 6.D 7.B 8.D 9.C 10.B
C.1.(a)Cool the affected area with lots of cold water to reduce pain,and inform the teacher immediately.
(b)Put the affected area in slow running water for at least10 minutes, and inform the teacher immediately.
(c)Use the eyewash bottle to wash the eye for a few minutes and inform the teacher immediately.
(d)Clean the wound with water and apply a dressing to it,and inform the teacher immediately.
2.Draw圖題 書有!!!!
3.(a)ml/cm3
(b)L
(c)m/cm
(d)h/min
(e)kg
(f)cm/mm
(g)s
(h)C
(i)m
()jg
4(a)2 is 72cm3and 3 is 80cm3.
(b)(1)80-72=8cm3
(2)8/10=0.8cm3
(c)To make sure that the foam beads are immersed in water.
5.(個人答案)
B should not throw solutions into the sink.
C should not throw solid waste into the sink.
D should not point the open end of a test tube with not liquid towards the face of his follow student.
F should clean up the bench and report,also she can't play in the laboratory.
H should not smell the chemical directly. He should fan the gas gently to her nose.
6.The high the water temperature, the faster the jelly powder dissolveg in water.

1.Use the same brand of jelly powder in both beakers.
2.Use the same amount of jelly powder in both beakers.
3.Stir the liquids for the same number or times.
4.Stir both liquids for the same number of times.
5.Use the same voloume of water.