Mark Scheme (For Practise Paper)

Question 1

Q1
Simplified Markscheme (6 Marks Total):

Answer 1

1-2 Marks:
Says giraffes have long necks to reach food. Basic idea of change or survival.

3-4 Marks:
Describes that giraffes with longer necks could reach more food and survived better.
Mentions they had babies or passed on traits.

5-6 Marks:
Clear explanation: variation in neck length, longer-necked giraffes could reach food
when it was scarce, survived and reproduced, passed on long neck trait, over many
generations necks became longer. Correct use of natural selection steps.

Question 2

Q2
Simplified Markscheme (6 Marks Total):

Answer 2

1-2 Marks:
survival.
States that more black moths appeared or mentions the colour change. Basic idea of

3-4 Marks:
Describes that black moths survived better when trees got darker and light moths
were eaten more. Mentions passing on traits or survival.

5-6 Marks:
Clear explanation: variation in moth colour, dark moths better camouflaged on
soot-darkened trees, light moths eaten more, dark moths survived and reproduced,
passed on dark colour trait, leading to more black moths over generations. Correctly
explains natural selection steps.

Question 3

Q3
Simplified Markscheme (6 Marks Total):

Answer 3

1-2 Marks:
Names one or two types of rocks (e.g., sedimentary, igneous, metamorphic). Gives a
very basic idea (e.g., formed from lava or layers).

3-4 Marks:
Names all three types and gives some correct details about how at least two are
formed (e.g., sedimentary from layers, igneous from cooling lava).

5-6 Marks:
Names all three types and clearly explains how each is formed:

Sedimentary: formed from layers of sediment pressed together.

Igneous: formed when magma or lava cools and solidifies.

Metamorphic: formed when existing rocks are changed by heat and
pressure.

Question 4

Q4
Simplified Markscheme (6 Marks Total):

Answer 4

1-2 Marks:
Mentions one way to make an electromagnet stronger (e.g.,
a bigger battery”).
“add more coils” or “use

3-4 Marks:
Names two correct ways to change strength (e.g., more coils, higher current, use an
iron core). Gives a basic explanation (e.g.,
“more coils makes it stronger”).

5-6 Marks:
Names three or more correct ways and explains why they work:

More coils: increases the magnetic field.
More current: makes a stronger field.
Iron core: concentrates and strengthens the field.
Clear explanation of how these changes make the electromagnet stronger.