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Jellyfish are not really fish. They are invertebrate animals. This means that unlike fish or people, they have no backbones. In fact, they have no bones at all.

Some jellyfish can glow in darkness by making their own light. The light is made by a chemical reaction inside the jellyfish. Scientists believe jellyfish glow for several reasons. For example, they may glow to scare away predators or to attract animals they like to eat.

Which one creates Jellyfish’s light?

• White blood

• Nervous system.

• Chemical reaction.

• Salt water

Based on the text, we know that….

• They belong to invertebrate animals.

• They have heads like other animals.

• Their brain helps them find the food.

• They cannot live in fresh water.

What is the text about?

• Jellyfish

• kinds of all fish

• all invertebrata animals

• some kinds of sea animals

“Some jellyfish can glow in darkness by making their own light.” (paragraph 3)

The word “glow” in the sentence means….

• Move

• Produce

• Appear

• shine

why do the jellyfish glow at night?

• to catch their prey

• to find the ways

• to scare away the predators

• to eat the predators