| A | B |
|---|
| Name the four oceans. | Pacific, Atlantic, Arctic, Indian |
| How are oceans important? | there are valuable resources. |
| Name some resources found in the ocean. | fish, sodium chloride(salt), sea weed, minerals |
| Name the largest ocean. | Pacific |
| Name the deepest ocean. | Pacific |
| How many oceans are there? | 4 |
| materials that people need and use are called_____. | resources |
| What gas do the ocean plants give off? | oxygen |
| How is seaweed used? | to eat like lettuce and it is ground into flour. |
| lumps found at the bottom of the ocean are called__________. | nodules |
| Do people take many nodules from the ocean? | No |
| What resources do people get from the ocean floor to make roads and buildings? | sand and gravel |
| This is a liquid fuel made from living things that lived millions of years ago. | petroleum |
| What products do oil companies make from petroleum? | oil, gas, waxes and other products. |
| name three ways the ocean can become polluted. | 1. cities dump their waste 2. chemicals from farms 3. oil from large ships calles tankers can spill oil |
| What is an ocean current? | rivers of water |
| Name one warm ocean current. | The Gulf Stream |
| From where do warm ocean currents come? | the equator |
| From where do cold ocean currents come? | from the north or south pole |
| What causes ocean currents? | The rotation of the earth |
| What is an ocean tide? | The rise and fall in the level of water along the ocean. High tide and low tide.coast. |
| what causes tides? | the gravitational pull of the moon on the ocean |
| the top of a wave is called a | crest |
| the bottom of a wave is called a | trough |
| the distance between two waves is called | wavelength |
| What is erosion? | It is when wind and water wears away the land or the beach |
