Science 6 Trinitas Quiz Bee Reviewer Unit 4

Pluto, now no longer considered a major planet, was downgraded to what category of celestial body?

• dwarf planet

• comet

• asteroid

• meteor

Answer explanation

Pluto was reclassified as a dwarf planet by the International Astronomical Union (IAU) in 2006 due to its characteristics and its orbit. The decision was made as part of a broader reclassification of celestial bodies in our solar system.

If you are indoors during an earthquake, what you should not do?

• Get a qualified person to repair defective electrical wiring and leaky gas connections.

• Look for and extinguish small fires.

• Use the elevator.

• Help injured and trapped persons.

Answer explanation

During an earthquake, using elevators is highly dangerous because power outages are common, and there's a risk of becoming trapped if the elevator stops working or if the building sustains damage. Additionally, emergency personnel may need to use the elevators to rescue people, and using them unnecessarily can impede rescue efforts. It's safer to use stairs if evacuation is necessary.

What do you call the pattern experienced by a given region over long periods of time that shows variations in temperature, humidity, atmospheric pressure, wind, and rainfall?

• Amihan

• Habagat

• Weather

• Climate

Answer explanation

Climate refers to the long-term average of weather conditions in a particular region or area. It encompasses patterns and variations in temperature, humidity, atmospheric pressure, wind, and precipitation over extended periods, typically spanning years to decades.

Earth’s tilt is the primary reason for the occurrence of seasons. At what angle is the Earth tilted?

• 25°

• 23.5°

• 25.5°

• 23°

Which of the statements are true?

A. An aftershock can occur after an earthquake.

B. Secondary earthquakes are called aftershocks.

C. A main shock is considered a foreshock if it is followed by an earthquake with greater magnitude.

• A and C

• B and C

• A and B

• A, B and C

What happens during an equinox?

• Earth's axis is pointed directly towards the sun.

• Earth's axis is tilted away from the sun.

• The length of day and night is equal throughout the world.

• The length of day and night varies throughout the world.

Answer explanation

An equinox occurs when the plane of Earth's equator passes through the center of the Sun. During this time, the tilt of Earth's axis is not pointed directly toward or away from the Sun, resulting in nearly equal lengths of day and night worldwide. This phenomenon happens twice a year, around March 20-21 (spring equinox) and September 22-23 (autumn equinox).

The term monsoon comes from wamsim, which means season. The word wamsim is ____________.

• Arabic

• Spanish

• Chinese

• Malaysian

Which planet is the biggest in diameter?

• Earth

• Mars

• Jupiter

• Saturn

Answer explanation

Jupiter has the largest diameter of any planet in our solar system. It is approximately 11 times the diameter of Earth, making it the largest planet in terms of size.

How long is one sidereal day?

• 23 hours, 56 minutes, 49 seconds

• 23 hours, 56 minutes, 40 seconds

• 23 hours, 56 minutes, 4.09 seconds

• 23 hours, 56 minutes, 40.9 seconds

Answer explanation

A sidereal day is the time it takes for a celestial object (such as a planet) to rotate 360 degrees relative to the fixed stars. For Earth, this is approximately 23 hours, 56 minutes, and 4.09 seconds.

Which is the hottest planet?

• Mercury

• Earth

• Venus

• Mars

Answer explanation

Venus is the hottest planet in our solar system, with surface temperatures that can reach up to about 870 degrees Fahrenheit (465 degrees Celsius). This extreme heat is primarily due to its thick atmosphere composed mainly of carbon dioxide, which creates a strong greenhouse effect trapping heat and raising surface temperatures.