GRADE 8- SCIENCE ELIMINATION ROUND

EASY

What powers the Earth's water cycle?

• MOON

• OCEAN

• SUN

• EARTH'S ROTATION

EASY

Which is faster in the air?

• SPEED OF LIGHT

• SPEED OF SOUND

• SPEED OF CHEETAH

• A VACUUM

EASY

Who invented the telescope?

• Isaac Newton

• James Watt

• Gallelli Galileo

• Roger Bacon

EASY

Approx how much time does light take to travel from Sun to Earth?

• 20 minutes

• 8 minutes and 20 seconds

• 1 hour

• 3 days

EASY

What is the First Law of motion according to Sir Isaac Newton?

• Law of Inertia

• Law of Interaction

• Law of Acceleration

• Law of Gravity

AVERAGE

What is the function of the digestive system?

• To produce vitamin D

• To help us move

• To break down and absorb nutrients

• To support our body

AVERAGE

When work is done, what happens to the one doing the work and the object to which the work is done?

• The one doing the work loses energy, and the object gains energy.

• The one doing the work gains energy, and the object loses energy.

• The one doing the work absorbs energy, and the object gains energy.

• The one doing the work absorbs energy, and the object loses energy.

AVERAGE

Acids have more ______ ions than bases

• OH^-

• H^-

• OH⁺

• H⁺

AVERAGE

How do nuclear power-plants work?

• Fusion

• Half-life

• Fission

• Fusion or fission

AVERAGE

How much weight of air is always over your head?

• 1 kg

• 1000 kg

• 100 kg

• 10 kg