What are tides?
What causes tides?
How does the position of the Earth, Moon and Sun affect the tides?
What are some common organisms and adaptations found on rocky shores/tide pools?
What are the defining characteristics of echinoderms?
What causes tides?
How does the position of the Earth, Moon and Sun affect the tides?
What are some common organisms and adaptations found on rocky shores/tide pools?
What are the defining characteristics of echinoderms?