Show:
Fizz, Bubble, React!
Plant Power
Magnetic Marvels
Science Spectacular
Jumbled Genius
100

Name two acids

Hydrochloric acid/nitric acid/sulphuric acid

100

State one importance of photosynthesis 

Food chain

100

Why does a compass needle move?

It aligns with Earth’s field.

100

What is the hottest planet in our solar system?

Venus

100

nogrydhe

Hydrogen

200

State the colour of litmus paper in acids and bases.

Acid- Red

Base- Blue

200

Plants make glucose in photosynthesis. Why is the starch test done to identify whether plants have photosynthesized?

  • Glucose produced in photosynthesis is quickly used or converted in the plant for energy or growth.

  • Plants store excess glucose as starch, which is more stable.

  • Testing for starch is therefore an indirect way to show that photosynthesis has occurred.

200

If you are in Dubai facing North, which direction is on your right?

EAST

200

Which animal can survive being frozen solid and then come back to life when thawed?

Tardigrade (water bear)

200

ucsolge

Glucose

300

Give three features of bases

  • They have a bitter taste

  • They are slippery in touch

  • They turn Red litmus blue

  • They liberate OH– ion (hydroxyl ion) when dissolved in water

  • They conduct electricity in solution form

300

Give three adaptations of plants for photosynthesis

CUTICLE, EPIDERMIS, PALISADE, GUARD CELLS, STOMATA, VEINS

300

Give two applications of electromagnets

  1. Generators, motors, and transformers

  2. Electric buzzers and bells

  3. Headphones and loudspeakers

  4. Relays and valves

  5. Data storage devices like VCRs, tape recorders, hard discs, etc.

  6. Induction cooker

  7. Magnetic locks

  8. MRI machines

  9. Particle accelerators

  10. Mass spectrometers

300

What is the name of the natural phenomenon that causes the sky to appear blue during the day?

Scattering

300

tatoasm

Stomata

400

Give two uses of neutralisation reactions

Antacid tablets contain bases (like magnesium hydroxide) that neutralise excess stomach acid.

Lime (a base) is added to acidic soil to neutralise it and make it suitable for farming.

400

Draw the structure of a leaf with all labels. 

Margin, tip, petiole, lamina and vein

400

Give three ways to make an electromagnet stronger

  • Wrapping the coil around a piece of iron (such as an iron nail)

  • Making the wire into a coil

  • Adding more turns to the coil.

  • Increasing the current flowing through the wire or coils

400

What is the name of the largest internal organ in the human body?

Liver

400

lphrolyhloc

Chlorophyll

500

Write the chemical equation for the reaction of sulphuric acid and potassium hydroxide.

H2SO4 + KOH --> K2SO4 + H20

500

Write the balanced chemical equation for photosynthesis.

6CO2 + 6H20 -->C6H12O6 + 6CO2

500

Describe how electricity can produce magnetism

  • When an electric current flows through a wire, it creates a magnetic field around the wire.

  • The magnetic field lines form concentric circles around the wire.

  • Wrapping the wire into a coil (solenoid) strengthens the magnetic field, and placing a soft iron core inside the coil makes a strong electromagnet.

500

What is the name of the hypothetical particle that travels faster than light, according to some theories in physics?

Tachyon

500

cfelidmagnetin

Magnetic Field