Matter and Energy in Nature
Presentation
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Science, English
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6th Grade
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Hard
Manuel Olivares
Used 7+ times
FREE Resource
19 Slides • 0 Questions
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Matter and Energy in Nature
All living things need matter and energy; that is why they interact among themselves in nature.
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How do plants get their food?
Organisms which are AUTOTROPHS produce their own food using LUMINOUS ENERGY.
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PHOTOSYNTHESIS (1)
Luminous Energy is captured by a green pigment called CHLOROPHYLL
Water absorbed from the soil by the roots goes up through the stem towards the leaves
Carbon Dioxide is absorbed by the leaves through tiny pores called STOMATA
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Photosynthesis (2)
The food the plant needs is produced in the green parts of the plant where Photosynthesis takes. This food is called GLUCOSE.
Because of this process the plant releases OXYGEN to the atmosphere through the stomata.
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Photosynthesis Equation
H2O+CO2+SUN LIGHT = GLUCOSE+O2
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How do animals feed?
Animals, including Human Beings, need nutrients to live and grow.
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What processes allow animals and human beings to get the food they need to live?
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Animals and Human beings are HETEROTROPHS.
Heterotrophs are organisms that eat other organisms to get their nutrients.
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Animals are classified according to the food they eat.
HERBIVORES: they eat plants
CARNIVORES: they eat other animals
OMNIVORES: they eat plants and animals
DECOMPOSERS: they break down dead organisms or the wastes of living things.
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Where does energy come from?
All the energy that living things require comes from the sun. This energy is captured by the PRODUCERS to make organic matter.
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FOOD CHAINS
They represent the way the organisms interact through food and how matter and energy flow in Nature. A Food Chain is compose by TROPHIC LEVELS.
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FOOD WEBS
In Nature, organisms from one species can be food for many other species. This way the Food Chains become crisscrossed giving origin to FOOD WEBS.
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Ecological Relationships
Animal behaviour and ecologycal interactions: the day-to-day lives and ecological relationships of different species
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Matter and Energy in Nature
All living things need matter and energy; that is why they interact among themselves in nature.
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