1
A
14
A
SAQ 5
• Answer: The petals wilt, and the ovary enlarges into a fruit. • Explanation: After pollination and fertilization, the ovary develops into a fruit, which prote
10
B
18
C
4
C
13
B
SAQ 6
• Answer: Morning clouds are lower and thicker, while afternoon clouds are higher and thinner. • Explanation: Temperature changes affect the water vapor in the
SAQ 1
Answer: Emma is modeling erosion, a natural process where water, wind, or ice wears away soil and rock particles, transporting them to other locations. Over tim
SAQ 4
The balloon in sunlight is larger. • Explanation: When air inside the balloon is warmed by sunlight, it expands because the air molecules move faster and spread
8
A
11
B
15
B
12
C
6
B
SAQ 1
C
5
C
16
B
2
B
7
B
SAQ 3
• Answer: Muscles pull on bones to create movement.
7
B
SAQ 2
During exercise, the body's muscles require more oxygen and nutrients to produce energy. The heart rate increases to pump more oxygen-rich blood to the muscles,
17
C
3
C
9
C