| A | B |
| aquarium | a tank or glass bowl in which living fish or other water animals and water plants are kept |
| artifacts | things made by human skill or work, especially tools |
| current | a flow or stream of water, electricity, air, or any fluid |
| destroyed | damaged something very badly |
| isolated | kept someone or someing away from other people or things |
| oxygen | an invisible gas that forms about one fifth of the air and about one third of water |
| expository nonfiction | teaches us about something. Provides us with facts |
| investigate | to examine something in order to find out more about it |