Welcome to Mr. Tamer Shahin’s Science Blog!
Dear students and parents, we are excited to start the second term of the 2026 academic year. To ensure our Primary 5 heroes achieve the full marks, we have prepared a comprehensive guide for Concept 3.1: Interactions between Earth's Spheres.
In this post, you will find:
Detailed Video Solution: Covering pages 5 to 10 of the El-Moasser Assessment Notebook.
Interactive Practice Quiz: 10 essential questions to test your understanding of the concept.
Follow along with the video below and then challenge yourself with the quiz. Let's make Science easy and fun!
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📝 Science Quiz: Concept 3.1 (Grade 5 - Second Term)
Prepared by: Mr. Tamer Shahin
Choose the correct answer:
1. The ___________ includes all living organisms such as plants, animals, and humans on Earth.
a) Hydrosphere
b) Atmosphere
c) Biosphere
d) Geosphere
2. Water is considered a ___________ resource because it is constantly recycled through the water cycle.
a) Non-renewable
b) Renewable
c) Mineral
d) Solid
3. The hydrosphere covers about ___________ of the Earth's total surface area.
a) 25\%
b) 50\%
c) 71\%
d) 97\%
4. When plants absorb water from the soil, this represents an interaction between the Biosphere and the ___________.
a) Hydrosphere
b) Atmosphere
c) Exosphere
d) Geosphere
5. Most of the water on Earth is salt water, representing about ___________ of total water.
a) 3\%
b) 71\%
c) 96.5\%
d) 10\%
6. Rivers and streams are considered sources of ___________.
a) Salt water
b) Fresh water
c) Frozen water only
d) Groundwater
7. The layer of air and gases that surrounds the Earth is known as the ___________.
a) Hydrosphere
b) Atmosphere
c) Geosphere
d) Biosphere
8. Photosynthesis in plants represents an interaction between the Biosphere and the ___________.
a) Atmosphere
b) Geosphere
c) Hydrosphere
d) Core
9. Soil, rocks, mountains, and volcanic ash are all parts of the ___________.
a) Hydrosphere
b) Geosphere
c) Biosphere
d) Atmosphere
10. Oceans are very large bodies of water that contain ___________.
a) Fresh water
b) Salt water
c) Frozen water only
d) Groundwater
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