Page 92 - steps 4b 02.pdf

• Answers 4b • • • • • • • • • • • • • • • • • 11

DRMq2 DRMq5
1 The following have reflective symmetry: 1 fraction decimal capacity volume
c 1 f I 9 I h full 3 4 0·75 750ml 750 cu cm
I ~ ~ n//,, empty 4 I 0 ·25 250ml 250 cu cm
I
I I
- + - w I b fraction decimal capacity volume
I I , full 7 0 ·7 700 ml 700 cu cm
I iO
I 3
I empty iO 0·3 300 ml 300 cu cm
fraction decimal capacity volume
I
full 2 0·5 500 ml 500 cu cm
empty 2 I 0 ·5 500 ml 500 cu cm
2 number of lines of symmetry
none 1 2 more than 2 fraction decimal capacity volume
4
a, b, d, e, k, I f, g, h, i c full iO 0 ·4 400 ml 400 cu cm
6
empty 0·6 600 ml 600 cu cm
DRMq3 iO
1 ir----'.
aq:a:··--;--------1 \ fraction decimal capacity volume
I
! ! : \ full 4 0·25 250ml 250 cu cm
I : .......... J \ 3
I ' ......... empty 4 0·75 750ml 750 cu cm
L ........ ! a ----------~
I
fraction decimal capacity volume
I
full iO 0· I 100 ml 100 cu cm
q
empty iO o.q qoo ml qoo cu cm
ORM qs
la and b
0 Fill jar with marbles (large buttons).
0 Add water in measured amounts until marbles (buttons)
are submerged.
0 Record total measured amounts in ml.
g~ or:
0 Fill jar with marbles (large buttons).
0 Submerge contents.
-----=t==t- O Pour off water and measure in ml.
r·---' ! 3 If the marbles in both jars are the same size, the amount
!
;-~
. . of liquid needed in the larger one will be about double
,_.,
l
l ___ J ____ _,
that in the smaller one.
DRM q4
4 Open • hope straight edges circular faces triangular faces 6 or more vertices
A tetrahedron ~es n.o yes no
5 yes B cylinder no yes no no
c pentagonal pyramid yes no yes yes
6 yes
D cuboid yes no no yes
8 The volumes are the same as the lump, cube and sphere. E hemisphere no yes no no
The amount of Plasticine is constant. F cube yes no no yes
G cone no yes no no
H square pyramid yes no yes no
I triangular prism yes no yes yes
J sphere no no no no
- - -
3 a I am a tetrahedron.
b lam a cone.
c I am a sphere.
4 Open

© HarperCollinsPub/ishers Ltd 1997 STEPS 4b Differentiation Pack