You can answer most of the questions with the information on this site.
Your answers will be better if you explain and describe things carefully in your own words

1. What is the scientific name for all the world’ s whales and dolphins?
    
2. Some whales don’t have any teeth.
   What do they have instead?
   How do these whales catch their food?
    
3. Why do dolphins need a thick layer of blubber?
    
4. Dolphin and porpoise teeth are not the same. Draw and describe the difference.
    
5. A dolphin can hold its breath for several minutes. A Sperm whale can dive for two hours on a single breath.
   Why do you think that this is an important adaptation to their environment?
    
6. Can you think of some more ways in which a dolphin’s body is adapted to life in the sea?
    
7. Dolphins can catch their prey in total darkness.
   How do they do it?
   What is it called?
   Draw a diagram to help explain.
    
8. Describe some of the ways human activities pollute the sea.
    
9. How can our use of the sea affect dolphins and whales?
    
10. Why do many people think that dolphin shows are cruel?

More ideas! Draw a diagram to show the differences between a dolphin and a baleen whale.

A Blue whale is the largest animal on Earth at about 26m long. A Bottlenose dolphin can be nearly 4m long. A tall human might measure 2m. Draw a scale diagram to show the differences in length.
 

Dolphins are at the top of their food chain. They eat mainly large fish. These eat smaller fish. Small fish eat tiny plants and animals called plankton. Draw the food chain.

Read about the dangers dolphins face. Make a poster or leaflet to encourage people to look after the sea.