Science
Weather
Canadian Things
Housekeeping
Vietnamese history
100

This unit measures frequency.

Hertz (Hz)

100

This scale measures the magnitude of earthquakes, with each whole number increase representing 10× more power.

Richter scale

100

This province in Canada produces over 70% of the world's maple syrup.

Quebec

100

These 2 ingredients help unclog drains when combined.

Baking soda and vinegar

100

This 15th-century emperor led the Lam Sơn uprising against the Ming and founded the Lê Dynasty.

Lê Lợi

200

This particle, with no electric charge, was discovered by James Chadwick in 1932.

Neutron

200

In a hurricane, the calm center surrounded by intense winds is called this.

Eye of the storm

200

The island archipelago of Saint-Pierre and Miquelon, located off the coast of this Canadian state, is the only part of North America still under French sovereignty.

Newfoundland

200

To prevent streaks on this type of appliance, you should wipe in the direction of its grain.

Stainless steel appliances

200

This dynasty, founded in 938 CE after the Battle of Bạch Đằng, marked Vietnam’s independence from Chinese rule.

Ngô Dynasty

300

This law in physics states that for every action, there is an equal and opposite reaction.

Newton’s Third Law

300

This type of severe Canadian winter storm is caused by freezing rain coating surfaces with ice.

Ice storm

300

The name “Canada” comes from the Iroquoian word “kanata,” meaning this.

Village or Settlement

300

Unlike sweeping, mopping works best when you move in this pattern to avoid just spreading dirty water around.

Figure-eight (or S-shaped)

300

This agreement temporarily divided Vietnam at the 17th parallel, leading to North and South Vietnam.

The Geneva Accords (1954)

400

This is the process where water vapor in the air changes into liquid water, often forming droplets on surfaces like windows or mirrors.

Condensation

400

Rain, snow, sleet, and hail are all types of this.

Precipitation

400

Canada’s official motto, “A Mari Usque Ad Mare,” translates to this in English.

From Sea to Sea

400

When washing windows, professionals recommend cleaning on this type of day(weather) to prevent streaks.

Cloudy or overcast day

400

This emperor of the Nguyễn Dynasty abdicated in 1945, ending over 1,000 years of monarchy in Vietnam.

Bảo Đại

500

This biological process allows plants to convert sunlight into chemical energy, producing glucose and oxygen.

Photosynthesis

500

This phenomenon occurs when warm, moist air rises rapidly, cools, and condenses, often producing thunderstorms and heavy rain.

Convection

500

In 1982, this document was signed, giving Canada full sovereignty from the UK.

The Canada Act

500

This method of folding bed sheets, perfected by the military and hotels, keeps corners crisp and tight.

The hospital corners

500

Vietnam became part of this French colonial federation in the late 19th century.

French Indochina

M
e
n
u