We did an experiment on density.
Question:
What happens when you drop an egg into ordinary drinking water and an egg into salt water?
Observation
1.the egg in the glas of ordinary water
2.the egg in the salt water
I am a Year 8 student at Glenbrae School in Auckland, NZ. I am in Room 7 and my teacher is Mrs Tofa.
Walt: estimate and measure the length, width and height of objects in our classroom
|
Objects
|
Estimate
|
Actual Measurement
|
Error
| ||||||
L
|
W
|
H
|
L
|
W
|
H
|
L
|
W
|
H
| |
Milk Carton
|
50mm
|
40mm
|
100mm
|
47mm
|
28mm
|
120mm
|
3mm
|
12mm
|
20mm
|
Maths Book
|
20.5cm
|
15.5cm
|
2cm
|
20.5cm
|
5mm
|
15.5cm
|
0.30
|
5cm
|
15mm
|
Student table A
|
40cm
|
20cm
|
2cm
|
121cm
|
80cm
|
2cm
|
81cm
|
60cm
|
0cm
|
Red Tray
|
380mm
|
180mm
|
9mm
|
390mm
|
300mm
|
80mm
|
10mm
|
280mm
|
71mm
|
White Board
|
109mm
|
104mm
|
102mm
|
161mm
|
20mm
|
110mm
|
52mm
|
84mm
|
8mm
|
Grey Door
|
102mm
|
104mm
|
102mm
|
86cm
|
7cm
|
196cm
|
18cm
|
97cm
|
94cm
|
\White Door
|
30cm
|
3cm
|
120cm
|
82cm
|
4.5cm
|
202cm
|
52cm
|
4.5 cm
|
182cm
|
Student Table B
|
150cm
|
60cm
|
144cm
|
180cm
|
80cm
|
155cm
|
30cm
|
20cm
|
10cm
|
Book Shelf
|
80cm
|
85cm
|
90cm
|
84cm
|
30cm
|
90cm
|
55cm
|
5cm
|
nil
|
Computer Table
|
90cm
|
40cm
|
85cm
|
100cm
|
30cm
|
65cm
|
10cm
|
10cm
|
20cm
|