8. Tides Quiz

What causes tides?

• Gravitational force of the sun

• Gravitational force of the moon

• Gravitational force of the earth

• Gravitational force of the stars

What does a dog's wagging tail indicate?

• Happiness

• Excitement

• Anxiety

• Dominance

Why do birds need gravity to swallow food?

• To make the food taste better

• To prevent choking

• To help with digestion

• To push the food through the esophagus

Why do animals' eyes glow in the dark?

• They have hidden torches

• They have special night vision

• They have a reflective layer in their eyes

• They can see in the dark without any special features

Why don't we feel pain when we cut our hair?

• Because hair is made of dead cells

• Because our brain doesn't receive pain messages from hair

• Because hair doesn't have nerves

• Because hair is too small to feel pain

What causes high tide?

• Gravitational force of the sun

• Gravitational force of the moon

• Gravitational force of the earth

• Gravitational force of the stars

What does a dog's tail position indicate?

• Happiness

• Excitement

• Anxiety

• Calmness

Why do birds tilt their heads up when swallowing food?

• To show dominance

• To prevent choking

• To help with digestion

• To direct the food towards the throat

What is the purpose of tapetum lucidum in nocturnal animals' eyes?

• To help them see better in the dark

• To protect their eyes from bright light

• To make their eyes glow

• To reflect light back onto the photoreceptors

Why do humans feel pain when they cut their skin?

• Because skin has nerves

• Because skin is sensitive

• Because skin is alive

• Because skin is connected to the brain