1: What are tides?
tides is the fall of the sea level because of the gravitational pull of the moon and sun
2: What causes tides? Explain in detail (show diagram)
tides are cause by gravity, when the moon orbits around the earth the side of the earth the moon is on is most affected this causes high tides, the side of the earth the moon isn't on is where low tides occur
3: Where do tides occur?
tides can occur on lakes, in the atmosphere, and within the earth
4: Explain- High and low tides (difference)
high tides and low tides have different tidal ranges
5: Which object exerts the most force on the tidal bulge? Why?
the moon exerts the most force on the tidal bulge
6: What happens when the sun and moon align? What happens when they are perpendicular to each other?
when the sun and moon align their gravitational pull combines to create tides called spring tides, when they are opposite from each other neap tides occur
7: What are some of the other factors that affect tides?
shape of the coastline, seafloor, topography, river discharge, wind, and weather conditions
8: What are the zones of the intertidal zone?
spray zone, upper inter tidal zone, mid inter tidal zone, low inter tidal zone, sub tidal zone
9: What are some of the challenges for the critters of the intertidal zone? Explain.
some challenges the critters face is avoiding drying out and the intense about of salt in the water, the animals must also avoid predation
10: How do the intertidal organisms COPE with the harsh environment?
the organisms have tough, leathery skin, crowd together to take up less surface area, some have shells, some burrow, and some hide behind rocks
11: What are some of the adaptations that help organisms cope with wave action?
the organisms have thick skins, strong skeletons, powerful arms, strong large feet, and some have shells
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.
Tides redistribute heat and regulate the climate. Also alot of the energy needed to power the oceans circulation pattern comes from tides.
What are some of the challenges on coastal areas because of tides? Explain how electricity can be generated by currents and tidal power.
Some challenges of coastal areas is having destructive waves during high tide. Electricity can be generated by the up and down motion of the sea and the flow of tidal currents.
tides is the fall of the sea level because of the gravitational pull of the moon and sun
2: What causes tides? Explain in detail (show diagram)
tides are cause by gravity, when the moon orbits around the earth the side of the earth the moon is on is most affected this causes high tides, the side of the earth the moon isn't on is where low tides occur
3: Where do tides occur?
tides can occur on lakes, in the atmosphere, and within the earth
4: Explain- High and low tides (difference)
high tides and low tides have different tidal ranges
5: Which object exerts the most force on the tidal bulge? Why?
the moon exerts the most force on the tidal bulge
6: What happens when the sun and moon align? What happens when they are perpendicular to each other?
when the sun and moon align their gravitational pull combines to create tides called spring tides, when they are opposite from each other neap tides occur
7: What are some of the other factors that affect tides?
shape of the coastline, seafloor, topography, river discharge, wind, and weather conditions
8: What are the zones of the intertidal zone?
spray zone, upper inter tidal zone, mid inter tidal zone, low inter tidal zone, sub tidal zone
9: What are some of the challenges for the critters of the intertidal zone? Explain.
some challenges the critters face is avoiding drying out and the intense about of salt in the water, the animals must also avoid predation
10: How do the intertidal organisms COPE with the harsh environment?
the organisms have tough, leathery skin, crowd together to take up less surface area, some have shells, some burrow, and some hide behind rocks
11: What are some of the adaptations that help organisms cope with wave action?
the organisms have thick skins, strong skeletons, powerful arms, strong large feet, and some have shells
Do: Predicting the Tides
Answer the questions with the animations- post on your website with diagrams and descriptions
- Explain how spring and neap tides are created.
The tides are created by the pull of the moon and the sun. When those bodies are aligned with one another, their gravitational forces act in the same direction and reinforce one another, creating the maximum possible tidal bulges, called the spring tides. When the sun and moon are at 90o from one another, relative to Earth, their tidal forces are also pulling in different directions, so the neap tides are minimized. - How many spring and neap tides occur each month? Why?
There are 2 spring and 2 neap tides each month. The moon rotates around the earth once in a month, so in that time it will be aligned with the sun twice, and at 90° to the sun twice.
Do: Life in the Intertidal Zone
Answer the questions with the animations- post on your website with diagrams and descriptions
- How does the abundance and diversity of life change across the various intertidal zones?
Life is very abundant and very diverse in the lower intertidal, and becomes less diverse towards the high intertidal. Both diversity and abundance are lowest in the spray zone. - Describe how the physical stresses on life vary from the top of the intertidal zone to the bottom.
At the top of the intertidal zone, organisms spend more time exposed than underwater, so they will have to cope with desiccation and large temperature swings. Those pressures will be less important lower in the intertidal zone because of the protection provided by greater time underwater. But plants and animals there are at, or just below, the surf zone, so they will be pounded by waves. - How are these stresses reflected in the types of animals that inhabit the intertidal subzones?
Many of the creatures that live in the highest intertidal zones either have the ability to close themselves up into their shells as a shelter against drying out, or are mobile enough to take cover. In the lower parts of the intertidal zone, many animals and plants have a means of attaching themselves in place and are either very sturdy or very flexible to stand up to wave energy. - Living conditions in the intertidal zone are difficult, yet most of it is abundantly populated. What are some of the benefits of intertidal living?
The harsh conditions in the intertidal zone cut down on competition for food and for space by excluding many animals. And the shallow water transmits the sunlight for bottom-dwelling plants’ need for photosynthesis.
Global Impact
What is the global impact of tides? Explain.
Tides redistribute heat and regulate the climate. Also alot of the energy needed to power the oceans circulation pattern comes from tides.
What are some of the challenges on coastal areas because of tides? Explain how electricity can be generated by currents and tidal power.
Some challenges of coastal areas is having destructive waves during high tide. Electricity can be generated by the up and down motion of the sea and the flow of tidal currents.