DOST Reviewer (SCIENCE)

Front

What is a nuclide?

Back

A nuclide is a distinct nuclear species characterized by its number of protons and neutrons in the nucleus.

Front

What does Z represent in nuclear chemistry?

Back

Z represents the atomic number, which is the number of protons in the nucleus of an atom.

Front

What is the difference between protons, neutrons, and electrons?

Back

Protons are positively charged particles in the nucleus, neutrons are neutral particles in the nucleus, and electrons are negatively charged particles that orbit the nucleus.

Front

What is the process of decantation?

Back

Decantation is a separation technique used to separate a liquid from solid particles by carefully pouring the liquid off.

Front

What is filtration?

Back

Filtration is a process that separates solids from liquids or gases using a filter that allows only the fluid to pass through.

Front

What is a magnet's role in separating materials?

Back

A magnet can attract ferromagnetic materials, such as iron and copper, allowing for their separation from non-magnetic materials.

Front

What is a biome?

Back

A biome is a large ecological area on the Earth's surface, with flora and fauna adapting to their environment.

Front

What are the characteristics of a desert biome?

Back

Desert biomes are characterized by low rainfall, extreme temperatures, and vegetation such as cacti and succulents.

Front

What precautions should be taken before a typhoon?

Back

Before a typhoon, monitor weather reports, check for damage to your home, and pack essential supplies.

Front

What is the importance of monitoring weather reports during a typhoon?

Back

Monitoring weather reports helps individuals stay informed about the storm's progress and make safety decisions.