1: What are tides?
The regular rise and fall of sea level.
2: What causes tides? Explain in detail (show diagram)
It's caused by the gravitational force of the moon and the sun
3: Where do tides occur?
They can occur at oceans, lakes.
4: Explain- High and low tides (difference)
In a high tide, a flood current comes in and the sea rises to its highest natural point it can be at. In a low tide, there are ebb currents and the sea level lowers down.
5: Which object exerts the most force on the tidal bulge? Why?
The moon exerts the most force on the tidal bulge because it is closes to Earth so it draws the most gravitational force.
6: What happens when the sun and moon align? What happens when they are perpendicular to each other?
Their force is combined to create the highest and lowest tides. When the sun and the moon are perpendicular, the tides have minimal changes in tides.
7: What are some of the other factors that affect tides?
The spin of the Earth, the shape of the coastline, winds, and sea floor topography.
8: What are the zones of the intertidal zone?
Spray zone, upper intertidal zone, mid intertidal zone, low intertidal zone, subtidal zone.
9: What are some of the challenges for the critters of the intertidal zone? Explain.
With the rapid changes in tides, critters can get exposed to either to much sunlight or to much water and waves. To much sunlight can dry up critters and heat up the water. Waves can wash away critters and bring them to sea.
10: How do the intertidal organisms COPE with the harsh environment?
Some animals have shells that close tightly to close in moisture. Some others have tough outer coverings to take waves that hit them.
11: What are some of the adaptations that help organisms cope with wave action?
Some sea stars can be exposed to air
Do: Predicting the Tides
Answer the questions with the animations- post on your website with diagrams and descriptions
Do: Life in the Intertidal Zone
Answer the questions with the animations- post on your website with diagrams and descriptions
Global Impact What is the global impact of tides? Explain. What are some of the challenges on coastal areas because of tides? Explain how electricity can be generated by currents and tidal power.
The regular rise and fall of sea level.
2: What causes tides? Explain in detail (show diagram)
It's caused by the gravitational force of the moon and the sun
3: Where do tides occur?
They can occur at oceans, lakes.
4: Explain- High and low tides (difference)
In a high tide, a flood current comes in and the sea rises to its highest natural point it can be at. In a low tide, there are ebb currents and the sea level lowers down.
5: Which object exerts the most force on the tidal bulge? Why?
The moon exerts the most force on the tidal bulge because it is closes to Earth so it draws the most gravitational force.
6: What happens when the sun and moon align? What happens when they are perpendicular to each other?
Their force is combined to create the highest and lowest tides. When the sun and the moon are perpendicular, the tides have minimal changes in tides.
7: What are some of the other factors that affect tides?
The spin of the Earth, the shape of the coastline, winds, and sea floor topography.
8: What are the zones of the intertidal zone?
Spray zone, upper intertidal zone, mid intertidal zone, low intertidal zone, subtidal zone.
9: What are some of the challenges for the critters of the intertidal zone? Explain.
With the rapid changes in tides, critters can get exposed to either to much sunlight or to much water and waves. To much sunlight can dry up critters and heat up the water. Waves can wash away critters and bring them to sea.
10: How do the intertidal organisms COPE with the harsh environment?
Some animals have shells that close tightly to close in moisture. Some others have tough outer coverings to take waves that hit them.
11: What are some of the adaptations that help organisms cope with wave action?
Some sea stars can be exposed to air
Do: Predicting the Tides
Answer the questions with the animations- post on your website with diagrams and descriptions
Do: Life in the Intertidal Zone
Answer the questions with the animations- post on your website with diagrams and descriptions
Global Impact What is the global impact of tides? Explain. What are some of the challenges on coastal areas because of tides? Explain how electricity can be generated by currents and tidal power.