Synergy of Science : Uniting Knowledge and Discovery

Why did we use red cabbage juice for this experiment?

• It acts as pH indicator

• It acts as base

• it acts as acid

If you add the red cabbage indicator to lemon juice what color would you expect to see? Why?

• Lemon juice is acidic, so the red cabbage indicator will turn green

• Lemon juice is acidic, so the red cabbage indicator will turn pink or red

• Lemon juice is alkaline, so the red cabbage indicator will turn pink or red

• Lemon juice is alkaline, so the red cabbage indicator will turn green

What are some other natural substances that can be used as pH indicators like red cabbage?

• Lemon Juice

• Sugar solution

• Beetroot Juice

• Pineapple Juice

Which of the following is an example of a combustion reaction?

• Rusting of iron

• Melting of ice

• Dissolving sugar in water

• Burning of wood

Which of the following is required for combustion to take place?

• Oxygen, heat, and fuel

• Heat, water, and oxygen

• Nitrogen, heat, and water

• Carbon dioxide, fuel, and sunlight

Why does oil float on water?

• Because oil is heavier than water

• Because water has a higher density than oil

• Because water repels oil

• Because oil has a higher density than water

Which of the following has the highest density?

• 
• 
• 
• 

A pencil appears bent when it is partially submerged in water. What causes this effect?

• Reflection of light

• Diffraction of light

• Refraction of light

• Absorption of light

What causes a rainbow to form?

• Refraction and dispersion of sunlight through water droplets

• Scattering of light by air molecules

• Reflection of sunlight off water droplets

• Absorption of light by water droplets

BONUS QUESTION
What is today's session's name?

• Synergy of Science : Uniting Knowledge and Discovery

• Synergy of Science : Knowledge and Discovery

• Synergy of Science : Uniting Knowledge

• Synergy of Science : Uniting and Discovery