Embedded Files
These are the Texas Essential Knowledge and Skills (TEKS). Each line describes what students are expected to know and be able to do by the time they take the STAAR assessment. I have bolded the skill portion of each student expectation to highlight what students must demonstrate.
Living and Nonliving things
Living and Nonliving things
Biotic Factors
Biotic Factors
Biotic factors are the living or once-living parts of an ecosystem. An ecosystem is an area where living and nonliving parts of the environment interact.
Abiotic Factors
Abiotic Factors
Abiotic factors are the nonliving parts of an ecosystem. Rocks, water, sand, sunlight, and air are abiotic factors.
Animal Interactions with Abiotic and Biotic Factors
Animal Interactions with Abiotic and Biotic Factors
Interactions for Survival
Interactions for Survival
The animal uses the shade made by the rock to stay cool.
The animal drinks water, which it needs to live.
Leaves and acorns are biotic factors the squirrel interacts with. The squirrel uses the leaves to make a nest, which provides protection from predators. The squirrel eats the acorns, which provide food the squirrel needs to live.
Abiotic Relationships
Abiotic Relationships
Take in carbon dioxide for photosynthesis
Release oxygen
Take in water and minerals through roots
Take in sunlight through leaves
Biotic Relationships
Biotic Relationships
Eaten by herbivores and omnivores
Eaten by consumers
Provide shelter to organisms
Grow alongside fungi
How Matter cycles in a food web
How Matter cycles in a food web
Types of Consumers
Types of Consumers
A consumer is an organism that eats other organisms for energy.
Herbivore
Herbivore
Herbivores are organisms that only eat plants for energy. Plants parts include: Leaves, Stems, Roots, Fruits, Nuts, and Seeds, Pollen/Nectar, and Flowers. Their teeth are specifically designed to crush and grind down plant material.
Omnivore
Omnivore
Omnivores are organisms that consume both plant matter and meat for energy. They have teeth that can complete both jobs, sharp teeth to shred meat, and flat teeth, to grind or crush.
Carnivore
Carnivore
Carnivores are organisms that consume other animals for energy. They are called meat-eaters. Their teeth are specifically designed to shred the meat off of organisms.
A decomposer is an organism that breaks down dead plant and animal matter.
A producer is an organism that makes its own food.
A consumer is an organism that eats other organisms.
Flow of Energy
Flow of Energy
The plant uses energy from the sun to make food. Energy flows from the plant to the fish when the fish and tortoise when they eat the plant. Energy flows from the fish to the bird when the bird eats the fish.
Practice
Practice
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