Tides
1: What are tides?
Tides are the regular alternating fall of sea level caused by the gravitational pull of the moon and sun.
2: What causes tides? Explain in detail (show diagram)
Gravity causes tides. When the moon is orbiting around the earth, the side of the earth it is on is mostly effected, thus causing high tides. On the other hand, the other side is not as effected, causing low tides.
3: Where do tides occur?
Tides occur on large lakes, in the atmosphere, and even within the solid earth.
4: Explain- High and low tides (difference)
The difference between high and low tides is the tidal range.
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 closer to 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 combine to produce the highest and lowest tides called spring tides. When they are perpendicular they pull at the sea from different directions, and neap tides (moderate tides) are formed.
7: What are some of the other factors that affect tides?
Other factors that affect tides are the shape of the coastline, seafloor topography, river discharge, wind, and weather conditions.
8: What are the zones of the intertidal zone?
Zones of the intertidal zone are the Spray Zone, the Upper Intertidal Zone, the Mid Intertidal Zone, the Low Intertidal Zone, and the Subtidal Zone.
9: What are some of the challenges for the critters of the intertidal zone? Explain.
Some of the challenges for the critters of the intertidal zone are avoiding drying out due to the intense sunlight, and the intense amount of salinities. These critters also must avoid predation by land animals during their exposure.
10: How do the intertidal organisms COPE with the harsh environment?
The intertidal organisms cope with the harsh environment by having tough, leathery skin to prevent water loss (seaweed), crowd together or scrunch each other up to take up less surface area (anemones). Some anemones squirt a mucus when out of the water. Snails and clams close up tightly to conserve moisture and scare away predators. Mobile animals fall away with the falling tide or burrow into sandy shelters.
11: What are some of the adaptations that help organisms cope with wave action?
Some of the adaptations that help organisms cope with wave action are having thick skin and strong skeleton to handle wave action. Sea slugs have a strong foot to help them stick to surfaces. Clams and mussels have hard shells. The plants have firmly anchored roots and flexable stems. Fish have sturdy bodies and strong muscles.
Tides are the regular alternating fall of sea level caused by the gravitational pull of the moon and sun.
2: What causes tides? Explain in detail (show diagram)
Gravity causes tides. When the moon is orbiting around the earth, the side of the earth it is on is mostly effected, thus causing high tides. On the other hand, the other side is not as effected, causing low tides.
3: Where do tides occur?
Tides occur on large lakes, in the atmosphere, and even within the solid earth.
4: Explain- High and low tides (difference)
The difference between high and low tides is the tidal range.
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 closer to 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 combine to produce the highest and lowest tides called spring tides. When they are perpendicular they pull at the sea from different directions, and neap tides (moderate tides) are formed.
7: What are some of the other factors that affect tides?
Other factors that affect tides are the shape of the coastline, seafloor topography, river discharge, wind, and weather conditions.
8: What are the zones of the intertidal zone?
Zones of the intertidal zone are the Spray Zone, the Upper Intertidal Zone, the Mid Intertidal Zone, the Low Intertidal Zone, and the Subtidal Zone.
9: What are some of the challenges for the critters of the intertidal zone? Explain.
Some of the challenges for the critters of the intertidal zone are avoiding drying out due to the intense sunlight, and the intense amount of salinities. These critters also must avoid predation by land animals during their exposure.
10: How do the intertidal organisms COPE with the harsh environment?
The intertidal organisms cope with the harsh environment by having tough, leathery skin to prevent water loss (seaweed), crowd together or scrunch each other up to take up less surface area (anemones). Some anemones squirt a mucus when out of the water. Snails and clams close up tightly to conserve moisture and scare away predators. Mobile animals fall away with the falling tide or burrow into sandy shelters.
11: What are some of the adaptations that help organisms cope with wave action?
Some of the adaptations that help organisms cope with wave action are having thick skin and strong skeleton to handle wave action. Sea slugs have a strong foot to help them stick to surfaces. Clams and mussels have hard shells. The plants have firmly anchored roots and flexable stems. Fish have sturdy bodies and strong muscles.
Do: Predicting the Tides
Answer the questions with the animations- post on your website with diagrams and descriptions
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
Answer the questions with the animations- post on your website with diagrams and descriptions
Global Impact
What is the global impact of tides? Explain.
The global impact of tides is redistributing heat and regulating climate. Along with this, half of the energy needed to power the ocean's 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 on coastal areas are having destructive waves during the high tide. This causes erosion and flooding towards inland, rather than just on the shore when it's low tide. Electricity can be generated by the up and down motion of the sea level and the flow of tidal currents.
What is the global impact of tides? Explain.
The global impact of tides is redistributing heat and regulating climate. Along with this, half of the energy needed to power the ocean's 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 on coastal areas are having destructive waves during the high tide. This causes erosion and flooding towards inland, rather than just on the shore when it's low tide. Electricity can be generated by the up and down motion of the sea level and the flow of tidal currents.