The document discusses tides and their causes. Tides are caused by the gravitational pull of the moon and sun, which pulls the water towards them. This causes two high tides each day on opposite sides of the Earth. The moon has a greater effect on tides due to its closer proximity. Tides can affect fishermen, fish, animals in tide pools, and require some buildings to be elevated. Tidal energy generation uses turbines in the water powered by tidal flows. Spring tides produce higher high tides when the sun and moon effects are aligned, while neap tides have lower high tides when their effects oppose each other. Places can experience diurnal or semidiurnal tides depending on whether the location

1. By: Joe Chandler
TIDES

2. TIDES
 Tides are caused when the moon and or sun’s
gravity pulls the water because of gravity. The
water is pulled one way but the spin of the
Earth makes high tides on the opposite side of
the Earth too. The Moon as more effect on
tides because it is closer. The side that isn’t
being pulled gets a low tide because it has less
water, most is being pulled.

3. EFFECTS
 Tides can effect fisherman and fish. The fish
may change their movements based on the
tides and fisherman can be highly affected
based on how much of a tidal change there is.
It also affects animals that may be stuck in tide
pools. Some people have to build their houses
on stilts so that the water doesn’t get all of the
way up to their house in storms and high tides
ect.

4. TIDAL ENERGY
 For tidal energy we basically just put a big turbine in the water
and let the tides spin them to make energy.

5. SPRING AND NEAP TIDES
 Spring tides are when the Sun and Moon work together to
make the high tides really high. Neap tide are when they are
against each other and make the high tides lower.

6. DIURNAL AND SEMIDIURNAL TIDES
 Diurnal tides are when a place gets only one
high tide per day because the opposite side of
the Earth from that place is land. A semidiurnal
tide is when a place gets 2 high and 2 low tides
per day. This happens because there is water
on the opposite side of the Earth to that spot.

7. THE END