Science Week P5 Quiz

What caused the pencil to appear this way?

• Reflection

• Refraction

• Chromatography

• Displacement

How do you prevent river-flooding?

• Place sandbags along the river

• Place cotton bags along the river

• Place salt bags along the river

• Place sugar bags along the river

What is the best conductor of electricity?

• Silver

• Gold

• Copper

• Bronze

How fast does your heart beat?

• 10 beats per minute

• 100 beats per minute

• 200 beats per minute

• 300 beats per minute

Which gas, when inhaled, gives you a high pitch voice?

• Helium

• Hydrogen

• Nitrogen

• Propane

Who discovered that lightning is electrical?

• Benjamin Franklin

• Thomas Edison

• Albert Einstein

• Isaac Newton

What is the significant unit for Energy?

• Joules (J)

• Newton (N)

• Lux (lux)

• Ampere (A)

According to the Guinness World Record, Tom Sietas held his breath underwater for ____________.

• 22 minutes and 22 seconds

• 36 minutes and 30 seconds

• 50 minutes and 32 seconds

• 17 minutes and 53 seconds

We can smell the scent of perfume sprayed in the room due to ___________________.

• Diffusion

• Osmosis

• Desalination

• Dilution

What is the largest cell in a human body?

• Egg cell

• Sperm cell

• Blood cell

• Muscle cell