SCI-PPT-Q2WK8 D-1-5.pptx

WEEK 8 Day 1
Lesson 35: Describing an Estuary

Reviewing previous lesson or presenting the new lesson
Give an example of plants found in
water? animals?

BOLUSAO KALAWAN, EASTERN SAMAR

1.What do you see in the picture?
2.How would you describe this kind
of environment?
3.Can we see it here in the
Philippines?
4.Can you cite place like this?

Presenting examples/ instances of the lesson
Activity: “Take a look”
https://youtu.be/w9Kqy-6bZbQ

Discussing new concepts and practicing new skills #1
1.What kind of habitat is an
estuary?
2.How is it similar or different
from the other habitat which you
have known or seen?

Activity 1.a
By using metacards complete the concept map
about estuary.
Characteristic of
estuary

-----a partially enclosed coastal body of
brackish water with one or more rivers or
streams flowing into it, and with a free
connection to the open sea. Estuaries form a
transition zone between river environments
and maritime environments.
synonyms: (river) mouth, delta; More
es·tu·ar·ye sCHəˌwerē/
noun
1.the tidal mouth of a large river, where the
tide meets the stream.

Evaluating learning
Read each question carefully. Choose the letter of the correct answer.
1. An estuary is another kind of habitat.
Which of the following describes an
estuary?
A. Land area that drains water into a
lake, river or pond.
B. Large body of saltwater that covers
most of the Earth’s surface.
C. Underground system that provides
drinking water to an area.
D. Area where a river meets the ocean, where
in mixing of freshwater and saltwater happens

2. Why are estuaries important to our
environment?
A. Provide homes for many species
of wildlife.
B. Are important nursery areas for a
variety of marine organisms.
C. Help filter pollutants in the water.
D. All of the above

3.Water is brought to an estuary from a
variety of sources. Which of the
following would contribute to an
increase in the salinity of the estuary?
A. rivers
B. streams
C. urban runoff
D. tides

4. Based on how estuaries are formed,
which of the following best describes
the salinity (saltiness) of estuary water?
A. Equal to the salinity of river water
B. Less than the salinity of river water
C. Less than the salinity of ocean
water
D. Greater than the salinity of ocean
water

5. Water in most estuaries is brackish
because of the mixing of freshwater
from rivers and saltwater from incoming
tides. What would happen to the water
in the bay if there is lack of water in the
bay water shed?
A. Increase salinity
B. River meets the sea
C. River becomes dammed
D. Wet land becomes filled in.

Additional activities for application or remediation
Direction: Draw 5 living things and non –
living things found in estuary.
Name those things.

WEEK 8 Day 2
Lesson 36: Interactions among Living
and Non-Living Things in Estuary
PRECILA R. UMALI
JZMES City of Santa Rosa
Based from Science Exemplar 5
Science Writing Team
Batangas Province

https://youtu.be/w9Kqy-
6bZbQ

1.What environmental conditions
present in estuaries make them
favorable habitats for plants and
animals?
2.What factors would contribute to
the changes in salinity with changes
in water depth?

3.What would be the effect of
salinity levels on plants and animals
living in the estuary?
4.How do organisms adopt with the
environment?
5.How do plants and animals
respond and cope with the harsh
condition in estuaries?

Developing mastery (Leads to formative assessment)
Read and discuss facts about estuaries.

Finding practical applications of concepts and skills in daily living
What are some of the benefits on
living in the estuary?
What are some of the
difficulties?
Making generalizations and abstractions about the lesson
How do living and non-living things
interact in estuary?

Estuaries have been called the
"nurseries of the sea" because the
protected environment and abundant
food provide an ideal location for fish
and shellfish to reproduce. Most
commercially important fish species
spend some part of their life cycle in
estuaries.

Estuarine fish habitats occur
where fresh water from rivers and
streams mixes with the salty
ocean water. This brackish water
environment supports a variety of
fish habitats, These environments
provide important feeding,
spawning and nursery sites for
many aquatic animals.

The Economy and Environment.
Estuaries are important natural
places. They provide goods and
services that are economically and
ecologically indispensable. Often
called nurseries of the sea (USEPA,
1993), estuaries provide vital nesting
and feeding habitats for many
aquatic plants and animals.

Evaluating learning
Read each question carefully. Encircle the
letter of the correct answer.
1.One of the fastest swimming crabs in the world is
the blue crab. Which of the following is an
adaptation of the crab for this?
A. jointed legs
B. body shape
C. large claws
D. paddle-like rear feet

2.If the planktons are removed from the estuary, what may
happen to the estuarine food web?
A. Planktons are producers so their
removal may not have an effect.
B. The other animals in the estuary will
have to find other food sources.
C. Removal of any organism like the
plankton will greatly
affect the ecosystem.
D. Filter feeders like oysters and clams
don’t depend on the presence of plankton.

3.Many shore birds feed on the mud flats of
estuaries. When would be the best time for
the birds to catch stranded fish and
invertebrates?
A. low tide
B. daytime
C. high tide
D. nighttime

4.Estuaries that are permanently open
for long periods by
heavy rains tend to have _________.
A. higher diversity
B. lower diversity
C. same diversity
D. equal diversity

5.Which of the following best describes
the salinity of estuary water?
A. Equal to the salinity of river water
B. Less than the salinity of river water
C. Less than the salinity of ocean water
D. Greater than the salinity of ocean
water

Do a Research
Choose an estuary animal and plant in
which you are interested to know more
about. Create a poster that shows the
interesting facts you’ll find out about it.
You may include the adaptations and
interactions to inhabit in estuary.

WEEK 8 Day 3
Lesson 37: Describing
Intertidal Zones
Ppt created by :
PRECILA R. UMALI
Batangas Province

WEEK 8 Day 3
Intertidal Zones
PRECILA R. UMALI
What is estuary?
Give an example of living things
found in estuary. How about
non-living things?

WEEK 8 Day 3
Intertidal Zones
What do you see in the picture?
How would you describe the environment?
Can we see it in the Philippines?

WEEK 8 Day 3
Intertidal Zones
https://youtu.be/DR1gP5S6Bsk
Based on the video presented complete the table below
The intertidal zone, also known as the littoral
zone, in marine aquatic environments is the
area of the foreshore and seabed that is
exposed to the air at low tide and submerged
at high tide, the area between tide marks.

WEEK 8 Day 3
Intertidal Zones
Coastal pollution also poses a threat to
tide pool animals and plants. Types of
coastal pollution include discarded trash,
oil spills, sewage spills, and toxic chemical
runoff- all of which can negatively impact
intertidal marine life. the intertidal
zone's high exposure to the sun

WEEK 8 Day 3
Intertidal Zones
The temperature range can be extreme
from very hot to near freezing in
frigid climates (with cold seas). Lastly, the
salinity is much higher in the intertidal
zone because salt water trapped in rock
pools evaporates leaving behind salt
deposits.

WEEK 8 Day 3
Intertidal Zones

WEEK 8 Day 3
Intertidal Zones
What kind of habitat is an intertidal zone?
How is it similar or different from the other
habitat?
What benefits do we get from intertidal zone?
Why is the intertidal zone a difficult habitat
to live in?

WEEK 8 Day 3
Intertidal Zones

WEEK 8 Day 3
Intertidal Zones
Making generalizations and abstractions about the lesson
1.What is intertidal zone?
2.What living and non-living things can
be found in intertidal zone?

WEEK 8 Day 3
Intertidal Zones
Evaluating learning
Read each question carefully and encircle the letter of the
correct answer.
1.What kind of habitat is the ocean
covered and
uncovered as the tide goes in and out?
A. Food chain
B. estuaries
C. Intertidal zone
D. food web

WEEK 8 Day 3
Intertidal Zones
2.Which of the following describes
the splash zone?
A. Located above the high tide mark
B. Covered by water during high tide
only
C. Regularly covered by water
D. Is being exposed only when tide is
at its lowest

WEEK 8 Day 3
Intertidal Zones
3.Why do you think there are organisms that
can be found in more than one zone?
A. They are able to reproduce more of
their kind
B. They are more adaptive to the
conditions in the zone
C. They cannot adjust to harsh
environments
D. They require little amount of oxygen

WEEK 8 Day 3
Intertidal Zones
4.The upper intertidal zone is only
covered by water
during high tide. Which of the following is
most likely to
result from this condition?
A. The water has a high salinity.
B. Algal growth is usually plentiful.
C. It is usually submerged in water.
D. It experiences extreme cold
temperature.

WEEK 8 Day 3
Intertidal Zones
5.What factors may affect the salinity of
water across the
intertidal zone?
A. Amount of rainfall and evaporation
B. Kind of organisms living in the area
C. Availability of space and food
D. Run off from the people living
along the shoreline

WEEK 8 Day 3
Intertidal Zones
WEEK 8 Day 4
Lesson 38: Interactions among
Living and Non-Living Things in
Intertidal Zone

WEEK 8 Day 3
Intertidal Zones
What is intertidal zone?
What are the living things found in the
intertidal zone?
What are the non-living things found in
intertidal zone

WEEK 8 Day 3
Intertidal Zones
Establishing a purpose for the lesson
What do you think is the water level in high tide?
How about the water level in low tide?
How would you describe the differences between the two?

WEEK 8 Day 3
Intertidal Zones

WEEK 8 Day 3
Intertidal Zones
1.Why is it difficult to live in intertidal zone?
2.Give organisms that can live in an
intertidal zone?
3.In each intertidal zone how do
organisms interact?
4.How do organisms interact with one
another?
5.How do organisms adapt with the
environment?

WEEK 8 Day 3
Intertidal Zones
Interactions among organisms image 1

WEEK 8 Day 3
Intertidal Zones
Interactions among organisms image 2

WEEK 8 Day 3
Intertidal Zones
Complete the Classification Chart by writing the adaptation and
interaction of living things and non-living things in intertidal zones.
Animals Adaptation/interaction of animal
anemones
Green algae's
Sea lettuce
Crabs
sponges

WEEK 8 Day 3
Intertidal Zones
The intertidal zone, also known as the
foreshore and seashore and sometimes
referred to as the littoral zone, is the area
that is above water at low tide and under
water at high tide (in other words, the area
between tide marks). This area can include
many different types of habitats, with many
types of animals, such as starfish, sea
urchins, and numerous species of coral. The
well-known area also includes steep rocky
cliffs, sandy beaches, or wetlands (e.g., vast
mudflats).

WEEK 8 Day 3
Intertidal Zones
The defining characteristic of the
intertidal zone is that it is submerged
with water during high tide and
exposed to the air during low tide. The
zone can take many forms, from sandy
beaches to rocky cliffs.

WEEK 8 Day 3
Intertidal Zones
A typical rocky shore can be
divided into a spray zone or splash
zone (also known as the supratidal
zone), which is above the spring high-
tide line and is covered by water only
during storms, and an intertidal zone,
which lies between the high and low
tidal extremes.

WEEK 8 Day 3
Intertidal Zones
Along most shores, the intertidal
zone can be clearly separated into the
following subzones: high tide zone,
middle tide zone, and low tide zone.
The intertidal zone is one of a number
of marine biomes or habitats,
including estuaries, neritic, surface and
deep zones.

WEEK 8 Day 3
Intertidal Zones
Evaluating learning
Read each question carefully and encircle the letter of the correct
answer.
1.Organisms that live in the intertidal
zone are adapted to crashing waves and
tidal changes. How do barnacles prevent
being washed away?
A. They cling tightly to rocks
B. Barnacles go with the waves
C. They open their shells
D. They store much salt in their bodies

WEEK 8 Day 3
Intertidal Zones
2.How do organisms exposed to air be able
to prevent drying out?
A. They seal completely their shells
B. They move up to zones that have plenty
of water
C. Organism feed on other organisms that
are watery
D. Organism store much water in their
bodies

WEEK 8 Day 3
Intertidal Zones
3.Why do you think there are organisms
that can be found in more than one zone?
A. They are able to reproduce more of their
kind
B. They are more adapted to the
conditions in the zone
C. They cannot adjust to harsh environment
D. They require little amount of water

WEEK 8 Day 3
Intertidal Zones
4.What factors may affect the salinity of
water across the
Intertidal zone?
A. Amount of rainfall and evaporation
B. Kinds of organisms living in the area
C. Availability of space and food
D. Runoff from the people living along the
shoreline

WEEK 8 Day 3
Intertidal Zones
5.In many desert regions, water is diverted
from streams and rivers to people in cities.
How does this affect the animals in the area?
A. The animals become more active in
daylight hours
B. The animals migrate to tropical
rainforests
C. The animals move closer to others to
get food
D. The animals stop searching for food and
water

WEEK 8 Day 3
Intertidal Zones
Identify your favorite intertidal organism
1.Name ___________________
2. Draw it’s picture
3. Where is this organism’s habitat?
4. What adaptation/interaction does it have?

WEEK 8 Day 3
Intertidal Zones
WEEK 8 Day 5
Lesson 39: Discuss Interaction
of Living and Non-Living in an
Estuary and Intertidal Zone
Ppt created by :
PRECILA R. UMALI
Batangas Province

WEEK 8 Day 3
Intertidal Zones
Identify the following.
____1.It is the boundary where a freshwater
ecosystem meets a saltwater ecosystem
____2. It is the shallowest part of the ocean
ecosystem, where it is covered out
and uncovered as the tide goes in and out.
____3. It is formed through the interaction of a
community of organisms with their
environment.
____4. It is referred to as “desert” zone of the
ocean.
____5. It is the zone that is regularly covered by
water.

WEEK 8 Day 3
Intertidal Zones
The world we live in is very rich in
natural resources whether it
may be terrestrial or aquatic.
1.Why are there so many living
organisms on Earth? so many different
species?
2.How do the characteristics of the non-
living environment help determine
which organisms thrive in particular
areas? How do they interact in a certain
habitat?
Establishing a purpose for the lesson

WEEK 8 Day 3
Intertidal Zones
1. Presentation of the lesson through video presentation
https://youtu.be/MGODmy
XkkPU

WEEK 8 Day 3
Intertidal Zones
1.How do plants and animals respond when
environmental conditions in an estuary change? in
an intertidal zone?
2.How do environmental changes in both
ecosystems affect the organisms inhabiting there?
3.How are producers able to feed the organisms
as shown in the video?
4.Why are decomposers important in an
ecosystem?

WEEK 8 Day 3
Intertidal Zones
Estuary food chains show the
feeding relationships between the
different organisms that live in an
estuary. They show the flow of matter
and energy through the ecosystem. A
food chain usually begins with producers
which are eaten by herbivores which in
turn are eaten by carnivores.

WEEK 8 Day 3
Intertidal Zones
.

WEEK 8 Day 3
Intertidal Zones
.
Organisms living within the intertidal
zone interact directly and indirectly with
each other. Species interactions form the
basis for ecosystem properties and
processes such as nutrient cycling and
food webs.

WEEK 8 Day 3
Intertidal Zones
. Predator-Prey
----An interaction between two organisms of
unlike species in which one of them acts as
predator that captures and feeds on the other
organism that serves as the prey. Animals that
live in the intertidal zone have a variety of
predators that consume them. When the tide is
in, they are preyed upon by sea animals, like
fish. When the tide is out, they are preyed upon
by land animals including foxes and humans.
Birds and marine mammals prey upon intertidal
organisms.

WEEK 8 Day 3
Intertidal Zones
. Herbivory
---- is eating solely plants,
especially living ones. Sea
Urchins live in the intertidal
zone and prey upon kelp and
other plants.

WEEK 8 Day 3
Intertidal Zones
. Parasitism
----- relation between two different kinds of
organisms in which one receives benefits
from the other by causing damage to it. An
example of this is round worms on
fish. Round worms sap the nutrients from
the intestines of fish. By stealing their
nutrients, they steal the fish’s food and are
able to feed themselves. Because the worm
benefits from receiving the food, and the fish
suffers, it is an example of parasitism.

WEEK 8 Day 3
Intertidal Zones
. Resource Partitioning
---- the process by which natural
selection drives competing species
into different patterns of use for food,
shelter, or other assets. Chthamalus is
a popular example of resource
partitioning in the intertidal zone.

WEEK 8 Day 3
Intertidal Zones
. Mutualism
--- way two organisms of different species
exist in a relationship in which each
individual benefits. The tortoiseshell
limpet & coralline crust algae are an
example of mutualism. The limpet gets a
constant source of food and a smooth
surface to feed from. The algae benefits by
having its surface cleaned by the limpet.
Without the limpet, the algae would
suffocate under debris and faster growing
algae would overtake its space.

WEEK 8 Day 3
Intertidal Zones
. Commensalism
----- relationship between two organisms
where one organism benefits without
affecting the other. An example of this is a
Clown Fish & Sea Anemone, in which it
lives among and is unaffected by the
stinging tentacles of the sea anemone. The
Clown Fish receives protection while the
Sea Anemone does not benefit or is
affected

WEEK 8 Day 3
Intertidal Zones
.
FEEDING
RELATIONSHIPS

WEEK 8 Day 3
Intertidal Zones
.
HAPPY TEACHING !!!!

SCI-PPT-Q2WK8 D-1-5.pptx

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SCI-PPT-Q2WK8 D-1-5.pptx