5. Which of the following substances is most likely to dissolve in water?
Sand
Oil
Plastic
Salt
12. Which part of a flowering plant absorbs water and nutrients from the soil?
Flowers
Stems
Leaves
Roots
14. What is the capital city of Vietnam?
Hanoi
Ho Chi Minh City
Hai Phong
Da Nang
21. What is the largest planet in our solar system?
Earth
Jupiter
Saturn
Mercury
10. Which of the following is the correct order of the life cycle of a flowering plant?
Seed, germination, flower, pollination
Flower, pollination, seed, germination
Germination, seed, pollination, flower
Pollination, flower, germination, seed
7. What is the process called when pollen is transferred from the anther to the stigma of a flower?
Germination
Fertilization
Pollination
Photosynthesis
3. Which process occurs when water vapor cools and changes back into liquid form?
Transpiration
Condensation
Precipitation
Evaporation
11. What is the process called when a seed begins to sprout and grow into a new plant?
Germination
Photosynthesis
Fertilization
Pollination
26. How many bones in the human body?
230 for babies and 210 for adults
270 for babies and 206 for adults
220 for babies and 216 for adults
250 for babies and 216 for adults
9. What is the female reproductive part of a flower called?
Ovary
Stigma
Anther
Style
13. What is the primary purpose of flowers in the life cycle of a flowering plant?
To store water and nutrients
To absorb sunlight for photosynthesis
To protect the plant from predators
To attract insects for pollination
16. The Truong Son mountain range runs through how many provinces and cities in Vietnam?
21
27
24
18
22. Which planet is known for its prominent rings?
Venus
Saturn
Mars
Earth
20. What is the largest hydroelectric power plant in Vietnam?
Dak Mi 2 Hydroelectric Power Plant
Son La Hydroelectric Power Plant
Hoa Binh Hydroelectric Power Plant
Da Nhim Hydroelectric Power Plant
8. What is the male reproductive part of a flower called?
Anther
Style
Ovary
Stigma
1. Which process involves water turning into water vapor and rising into the atmosphere?
Transpiration
Precipitation
Condensation
Evaporation
19. What is the largest island in Vietnam?
Hon Tre
Cat Ba
Con Dao
Phu Quoc
25. Who was the first human to travel into space?
Buzz Aldrin
Yuri Gagarin
Neil Armstrong
Alan Shepard
4. What is the term for water that falls from the atmosphere to the Earth's surface in the form of rain, snow, sleet, or hail?
Condensation
Precipitation
Evaporation
Transpiration
23. What is the name of the largest volcano in the solar system, located on Mars?
Mount Everest
Mauna Kea
Mount Kilimanjaro
Olympus Mons
2. What is the primary source of energy for the water cycle?
Rain
Moon
Sun
Wind
6. Which part of a flowering plant produces pollen?
Roots
Flowers
Stems
Leaves
18. Which national highway (Quốc Lộ) connects Hanoi and Ho Chi Minh City?
National Highway 1
National Highway 5
National Highway 10
National Highway 20
17. Which is the largest seaport city in northern Vietnam?
Hai Phong
Da Nang
Ha Long
Vung Tau
15. Where is the Mekong Delta located in Vietnam?
North
South
West
East
24. What is the name of the galaxy that contains our solar system?
Milky Way
Triangulum
Sombrero
Andromeda