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WorksheetsPrimary 6 Science Midterm Review for the 2nd sem
Total questions: 60
Worksheet time: 50mins
Name
Class
Date
1.
What are rocks primarily composed of?
a)
Metallic substances
b)
Volcanic materials
c)
Both metallic and non-metallic substances
d)
Organic matter
2.
What are the three main types of rocks?
a)
Sedimentary, Volcanic, and Granite
b)
Igneous, Metamorphic, and Earthy
c)
Igneous, Sedimentary, and Metamorphic
d)
Sandstone, Basalt, and Limestone
3.
How are igneous rocks formed?
a)
By weathering and erosion
b)
From high pressure and heat
c)
Through cooling and solidification of magma or lava
d)
By deposition of sediments over time
4.
Which igneous rock is commonly used in jewelry due to its glassy surface?
a)
Granite
b)
Basalt
c)
Obsidian
d)
Pumice
5.
What is a characteristic texture of granite?
a)
Porous
b)
Glassy
c)
Large mineral grains
d)
Fine mineral grains
6.
How are sedimentary rocks typically formed?
a)
Through volcanic activity
b)
By high pressure and heat
c)
By the deposition of sediments layer upon layer
d)
By the cooling of lava
7.
What are fossils usually found in?
a)
Igneous rocks
b)
Metamorphic rocks
c)
Sedimentary rocks
d)
Volcanic rocks
8.
Which rock type is used to make bricks and pottery?
a)
Basalt
b)
Sandstone
c)
Shale
d)
Limestone
9.
What is the process of breaking down rocks into smaller pieces called?
a)
Melting
b)
Erosion
c)
Sedimentation
d)
Weathering
10.
What process carries away broken rocks?
a)
Melting
b)
Weathering
c)
Erosion
d)
Sedimentation
11.
What does the rock cycle demonstrate?
a)
How rocks are formed
b)
How rocks change from one type to another
c)
The stages of rock formation
d)
The weathering process
12.
Which type of rock originates from the cooling of lava?
a)
Sedimentary
b)
Metamorphic
c)
Igneous
d)
Volcanic
13.
What are diamonds primarily used for?
a)
Construction
b)
Cutting tools for surgeries
c)
Jewelry making
d)
Pottery
14.
Which rock type is slate derived from?
a)
Shale
b)
Basalt
c)
Sandstone
d)
Granite
15.
What is the primary use of marble?
a)
Construction
b)
Pottery
c)
Jewelry making
d)
Statues or floor tiles
16.
What is the main characteristic of non-foliated metamorphic rocks?
a)
Layers of crystals
b)
Smooth surface
c)
Banding
d)
Rough texture
17.
How do sedimentary rocks usually form?
a)
By volcanic eruptions
b)
Through high pressure and heat
c)
From the deposition of sediments over time
d)
By melting and solidification
18.
What is the term for remains of ancient plants and animals?
a)
Fossils
b)
Relics
c)
Traces
d)
Imprints
19.
How do rocks change from one type to another?
a)
Through the melting process
b)
Via weathering and erosion
c)
By heat and pressure
d)
Through the rock cycle
20.
What material is typically used in cutting tools for medical surgeries?
a)
Diamond
b)
Marble
c)
Obsidian
d)
Basalt
21.
How does a sea breeze form?
a)
It blows from the land towards the sea.
b)
It is caused by the sinking air over the land.
c)
It flows from the sea towards the land due to temperature differences.
d)
It occurs when warm air over the sea rises.
22.
What defines a land breeze?
a)
It occurs when warm air over the sea rises.
b)
It blows from the sea towards the land.
c)
It is a transitional period between monsoon seasons.
d)
It flows from the land towards the sea.
23.
What best describes monsoons?
a)
Rapid changes in temperature
b)
Random shifts in weather patterns
c)
Seasonal wind changes with specific timing
d)
Continuous strong winds near the equator
24.
When does the Northeast monsoon season in Thailand generally occur?
a)
Mid-February to mid-May
b)
Mid-May to mid-October
c)
Mid-October to mid-February
d)
It happens year-round
25.
What characterizes the pre-monsoon season in Thailand?
a)
High temperatures in northern and northeastern Thailand
b)
Low rainfall across most parts of Thailand
c)
Heavy rains in southern Thailand
d)
Cool temperatures throughout the country
26.
When does the Southwest monsoon season in Thailand usually occur?
a)
Mid-October to mid-February
b)
Mid-February to mid-May
c)
Mid-May to mid-October
d)
During the transitional period
27.
What primarily causes the formation of monsoons?
a)
Differences in wind pressure
b)
Oceanic volcanic activity
c)
Temperature discrepancies between land and oceans
d)
Magnetic shifts in the atmosphere
28.
How do monsoons form during the summer?
a)
Cooler air from the oceans moves towards the land.
b)
The sinking air over the ocean brings moisture to the land.
c)
The rising warm air over the land draws moisture from the oceans.
d)
The sinking warm air over the land prevents rainfall.
29.
What are the effects of monsoons?
a)
Limited impact on agriculture
b)
Beneficial for fishermen
c)
Negative impact on hydroelectric power stations
d)
Impact on agriculture, hydroelectric power, and fishing
30.
Which of these is a benefit brought about by monsoons?
a)
Safe conditions for fishermen to fish
b)
Destruction of waterborne diseases
c)
Ideal conditions for droughts
d)
Vital water supply for crop growth
31.
What impact does strong monsoon winds have on fishermen?
a)
Safe conditions for fishing
b)
An increased catch of fish
c)
Unsafe conditions for fishing in open waters
d)
Ideal conditions for fish migration
32.
What is a potential consequence of heavy monsoon rains?
a)
Depletion of water sources
b)
Reduced waterborne diseases
c)
Potential flooding leading to crop and building destruction
d)
Decreased spread of mosquito-borne illnesses
33.
How do mosquitoes contribute to the spread of diseases during flooding?
a)
By causing droughts
b)
Through the creation of standing water
c)
By reducing the risk of diseases
d)
Through the provision of clean water sources
34.
What can protect against mosquito-borne diseases during flooding?
a)
Avoiding insect repellents
b)
Eliminating all standing water
c)
Spraying insect repellents on the body
d)
Decreasing preventive measures
35.
Which statement best describes the effects of monsoons on hydroelectric power stations?
a)
They have no impact on power generation.
b)
Monsoons enhance power generation.
c)
Monsoons hinder power generation.
d)
Hydroelectric power is not influenced by weather conditions.
36.
How does land heating affect the formation of sea breezes?
a)
It causes warm air to move from land to sea.
b)
It initiates a decrease in wind speed.
c)
It prevents the formation of sea breezes.
d)
It results in warm air moving from sea to land.
37.
What weather phenomenon do monsoons bring to Thailand during the Southwest monsoon season?
a)
Snowfall
b)
Heavy rainfall
c)
Extreme drought
d)
Strong tornadoes
38.
What is the primary impact of monsoon rains on agriculture?
a)
Limited impact
b)
Negative impact
c)
Positive impact
d)
No impact at all
39.
How do temperature differences contribute to the formation of monsoons?
a)
Land heats up faster than the oceans, leading to air movement.
b)
Oceans heat up faster than the land, causing wind shifts.
c)
There are no temperature differences involved in monsoon formation.
d)
Temperature changes have an indirect effect on monsoons.
40.
What role do monsoons play in droughts?
a)
Monsoons prevent droughts.
b)
Monsoons have no relation to droughts.
c)
Monsoons cause excessive rainfall, leading to droughts.
d)
Monsoons can result in droughts due to insufficient rainfall.
41.
Rocks are primarily composed of metallic substances like gold, iron, and copper.
a)
True
b)
False
42.
Sedimentary rocks are formed by the cooling and solidification of magma or lava.
a)
True
b)
False
43.
Granite is an example of an igneous rock with fine mineral grains on its surface.
a)
True
b)
False
44.
Physical weathering can be caused by changes in temperature and repeated freezing and melting of water.
a)
True
b)
False
45.
Limestone can be formed from layers of rock pieces, shells of sea creatures, and through the precipitation of calcium carbonate in water.
a)
True
b)
False
46.
Slate is a non-foliated metamorphic rock formed from shale and has a rough texture.
a)
True
b)
False
47.
Chemical weathering involves erosion of rocks by running water, glaciers, waves, or wind.
a)
True
b)
False
48.
The rock cycle demonstrates the continuous change of rocks from one type to another through various processes.
a)
True
b)
False
49.
Fossils found in sedimentary rocks provide information about ancient environments and the history of ecosystems.
a)
True
b)
False
50.
Weathering is the process of breaking down rocks into smaller pieces through physical, chemical, and biological means.
a)
True
b)
False
51.
Sea breeze occurs when warm air over the sea rises.
a)
True
b)
False
52.
Land breeze moves from the land towards the sea.
a)
True
b)
False
53.
Monsoons are not specific to any particular region on Earth.
a)
True
b)
False
54.
During the Southwest monsoon season in Thailand, moist air from the Indian Ocean moves towards the country.
a)
True
b)
False
55.
Monsoons are solely caused by the differences in wind pressure.
a)
True
b)
False
56.
Monsoon seasons in Thailand have no significant impact on temperatures or rainfall.
a)
True
b)
False
57.
Monsoons can cause heavy rainfall but cannot result in drought conditions.
a)
True
b)
False
58.
Mosquito-borne diseases like dengue and malaria are not linked to standing water caused by monsoon flooding.
a)
True
b)
False
59.
Monsoon rains are detrimental to agricultural activities.
a)
True
b)
False
60.
Spraying insect repellents can protect against mosquito-borne diseases during flooding caused by monsoons.
a)
True
b)
False
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