Page 27 - Genius PBD Science Year 6

ANSWERS

(iii) Constant variables: Size Constant variable:
UNIT 1 Scientific Skills
and age of frog Mass of salt/ sugar/
6. The higher the volume of the time taken to carry
1.1 Science Process Skills
water, the lower the pitch of the out the investigation/
1. (a) sound produced. amount of yeast
7. A (a) Does the amount of yeast (iii) Flour, sugar, warm
added into the bread water, salt, yeast,
dough affect the size of bowl, weighing scale
the risen bread dough?
(b) The higher the amount of
Is used to observe Is used to observe
the changes in the changes in yeast, the bigger the size SUMMATIVE PRACTICE 1
water temperature water volume of the of risen bread dough.
after 3 hours containers (c) (i) Amount of yeast Objective Questions
(ii) Size of the risen bread
(c) The water in containers P dough 1. C 2. B 3. B 4. C 5. A
and Q decrease. The water (iii) Mass of flour/ salt/
in container P feels hot when sugar/ volume of water/ Subjective Questions
touched but the water in time taken to carry out 1. (a) Animals with legs and without
container Q does not show investigation legs
any changes in the water (d) Flour, sugar, warm water, (b)
temperature. salt, yeast, bowl, weighing Animals
2. (a) scale
Animals C (a) With legs Without legs
Amount Size of the risen • Horse • Snake
of yeast • Duck • Fish
Small size Big size bread dough
(grams)
• Tortoise • Snail
Cockroach Elephant 10 Small (c) Reproduction method/
Snail Giraffe 15 Average Habitat
Cat Tiger 20 Big UNIT 2
Grasshopper Lion Humans
(b) The size of the bread
Gold fish Dugong dough increases because 2.1 Human Reproduction
Bird Whale the large amount of 1. Male reproductive organ
Worm Dolphin yeast added releases a (a) (i) Testis
lot of gas.
(c) The bread dough will not (ii) Penis
3. (a) (i) The ice-cream/ solid melts (b) (i) Organ: Testis
when heat is absorbed. rise. Function: To produce
(ii) The ice-cream/ solid (d) Student’s answer sperms
changes shape when (e) The size of the bread (ii) Organ: Penis
heat is absorbed. dough increases when Function: To transfer
(b) Matter will melt upon the amount of yeast sperms into the female
absorbing heat. increases. reproductive organ
4. Seedling P that is watered every (f) The amount of yeast Female reproductive organ
affects the size of risen
day grows healthily because bread dough. (a) (i) Fallopian tube
plants need water to survive. The
growth of seedling Q which does (g) (i) As the mass of flour (ii) Ovary
not get water is retarded because increases, the bigger (iii) Uterus
the size of the risen
plants cannot live without water. bread dough will be. (iv) Vagina
5. (a) (i) Manipulated variables: (ii) Manipulated (b) (i) Organ: Fallopian tube
Presence of water and variable: Mass of the Function: A place where
food fertilisation occur
(ii) Responding variables: flour (ii) Organ: Ovary
Responding variable:
Condition of the frog after The size of the risen Function: To produce
a week ovum (reproductive cell)
bread dough every month

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00 Answer Mahir Sci Y6.indd 1 26/09/2022 4:03 PM