The document is a science review for 7th grade covering topics like Earth's layers, continental drift, erosion, hydroelectric power, forests, and human anatomy. It contains multiple choice questions, fill-in-the-blank exercises, labeling activities, and short answer questions assessing understanding of these topics through diagrams, charts and descriptive text.

1. LOGOS ACADEMY
SCIENCE 3rd
TERM REVIEWS 7TH BASIC YEAR ……..
Name………………………………………………… Date………………
A) Label the following picture with the correct information about Earth`s
Layers.
B) Questions. Answer the following short-answer questions.
1. What is the Core made of?
___________________________________________________________________
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2. Why is the Inner Core a solid ball of iron?
___________________________________________________________________
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3. What is the name of the pieces into which the Lithosphere is divided?
___________________________________________________________________
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4. To which physical layers is the Mantle related?
___________________________________________________________________
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C) True or False. If False, correct.
1. The Continental Drift separated the Pangaea into different
continents. _______________
___________________________________________________________________
2. The 3 movements of the Continental include groundwater, surface
streams and waves. _______________
___________________________________________________________________

2. Science 3RD TERM REVIEWS, 7th Basic, pg 2/4
D) Fill in the blanks.
1. I affect shorelines and sometimes form barrier islands close to the
coastlines. I am ____________________
2. If you find flowing water beneath your feet, caverns and other
landscapes can be formed. Even sinkholes can happen in the
middle of the street. I am ____________________
3. Rivers can change its shape because of the flowing water. I am
____________________
4. I move sediments and other materials to other places. Water, wind,
air and ice help me. I am ____________________
5. I settle sediments and deposit new material through a natural
process. I am ____________________
E) Complete the following chart with advantages and disadvantages of
Hydroelectric Power
Advantages Disadvantages
F) Critical Thinking. Answer the following questions.
1. Why do we say Hydropower is clean?
________________________________________________________________
________________________________________________________________
2. Why do you think trees from dry forests need long and deep roots?
________________________________________________________________
________________________________________________________________
G) Analyze, think, and write.

3. Science 3RD TERM REVIEWS, 7th Basic, pg 3/4
How is electricity Write 2 advantages of Write 1 disadvantage of
generated in this dam? hydroelectricity hydroelectricity
H) Locate and label the information in the map.
I) Multiple Choice. Circle and write the best answer.
1. The tropics experience only two _______________ during a the year.
a) two c) rainforests
b) rainfall d) seasons
2. The _______________ is a layer in the forest where tall trees share
their leaves.
a) canopy c) subsoil
b) capricorn d) rainfall
3. _______________ are groups of ecosystems with similar climates and
plants and animals adapted to it.
a) Biomes c) Canopy
b) Large ecosystems d) Biodiversity

4. Science 3RD TERM REVIEWS, 7th Basic, pg 4/4
J) Label the female and male Reproductive organs
K) Fill the chart with the correct information about body systems.
BODY SYSTEM ORGANS