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Producers

Producers

Assessment

Presentation

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Science

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6th - 8th Grade

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Practice Problem

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Easy

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NGSS
MS-LS2-3, MS-LS1-6, MS-LS1-7

+4

Standards-aligned

Created by

Barbara White

Used 5+ times

FREE Resource

12 Slides • 19 Questions

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Producers

Middle School
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Learning Objectives
  • Define producers and their essential role in an ecosystem.

  • Explain how photosynthesis converts CO2 and H2O into sugar and oxygen.

  • Trace the flow of energy and the cycling of matter in an ecosystem.

  • Describe how organisms use food for energy, growth, and repair.

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Key Vocabulary

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Energy

Energy is the power to cause change or do work, like making things move or grow.

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Producers

Producers are organisms, like plants, that create their own food, usually through the process of photosynthesis.

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Photosynthesis

Photosynthesis is the process plants use to convert light, water, and carbon dioxide (CO2) into sugar.

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Flow of Energy

The flow of energy describes how energy moves from one organism to another within an ecosystem.

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Cycling of Matter

The cycling of matter refers to how essential substances are continuously reused and moved through an ecosystem.

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Organic Molecules

Organic molecules are essential for life and are primarily made of carbon atoms, such as sugars.

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Key Vocabulary

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Consumers

Consumers are organisms that cannot make their own food and must eat other organisms for energy.

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Cellular Respiration

Cellular respiration is the process where cells break down sugars to release energy for life's activities.

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Autotrophs

Autotrophs, also known as producers, are organisms that can create their own food, usually through photosynthesis.

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Heterotrophs

Heterotrophs, also known as consumers, are organisms that get energy by eating other living things.

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Biomass

Biomass refers to the total mass of all living or recently deceased organisms in a specific area.

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Producers and Photosynthesis

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Multiple Choice

What is the primary role of a producer?

1

To create its own food using photosynthesis.

2

To consume other organisms for energy.

3

To break down dead organic material.

4

To absorb energy from other producers.

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Multiple Choice

What does a plant use to create sugar and oxygen during photosynthesis?

1

Sunlight, water, and carbon dioxide.

2

Sugar, oxygen, and soil.

3

Water, oxygen, and sugar.

4

Sunlight, soil, and oxygen.

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Multiple Choice

If a healthy plant is moved from a sunny window to a dark closet, what will most likely happen to it over time?

1

It will be unable to produce the sugar it needs for energy and growth.

2

It will start producing more oxygen to survive.

3

It will use water and carbon dioxide to grow faster.

4

It will adapt to the dark and no longer need sunlight.

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Photosynthesis

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  • Photosynthesis moves matter from the non-living environment into living plants.

  • Plants use sunlight to turn carbon dioxide and water into sugar.

  • This makes matter available to the plant and animals that eat the plant.

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Multiple Choice

What is the primary role of photosynthesis in the cycling of matter?

1

It moves matter from the non-living environment into living plants.

2

It helps animals digest the food they eat.

3

It turns sugar back into carbon dioxide and water.

4

It creates sunlight for plants to use.

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Multiple Choice

How do plants create the matter that becomes available to other living things?

1

They use sunlight to convert carbon dioxide and water into sugar.

2

They absorb sugar directly from the soil through their roots.

3

They break down animals to get the matter they need.

4

They convert oxygen from the air into water.

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Multiple Choice

What would be the most likely result if a plant could no longer get carbon dioxide?

1

Matter would not be available for the animal to consume.

2

The animal would learn to use sunlight for energy.

3

The plant would provide more water to the animal.

4

The animal would start making its own sugar.

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Consumers and Cellular Respiration

Consumers

  • Organisms that are unable to create their own food are called consumers.

  • These organisms are also known by the scientific name heterotrophs.

  • They get energy and matter by eating other organisms in the ecosystem.

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Cellular Respiration

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Multiple Choice

Which statement best describes a consumer, also known as a heterotroph?

1

An organism that gets energy and matter by eating other organisms.

2

An organism that creates its own food from sunlight.

3

An organism that releases oxygen into the atmosphere.

4

An organism that uses carbon dioxide to make sugars.

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Multiple Choice

What is the primary function of cellular respiration in a consumer?

1

It creates energy by combining oxygen and other organisms.

2

It releases stored energy from food by breaking down sugars with oxygen.

3

It gets rid of waste products created during photosynthesis.

4

It stores energy for later use by creating complex sugars.

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Multiple Choice

Based on the relationship between processes, what would most likely happen to consumers if all photosynthesizing organisms disappeared?

1

Consumers would have to learn how to perform photosynthesis.

2

Consumers would not have the oxygen needed to release energy from their food.

3

Consumers would have too much sugar and not enough carbon dioxide.

4

Consumers would start releasing oxygen instead of using it.

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Tracing Energy and Matter in Food

  • Food provides organisms with matter for growth and energy for their life functions.

  • The flow of energy in an ecosystem begins with the sun.

  • When a consumer eats a producer, matter and chemical energy are transferred.

  • This transfer of matter and energy continues up through the food chain.

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Multiple Choice

What are the two main things that food provides to an organism?

1

Matter for growth and energy for life functions

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Sunlight and water for photosynthesis

3

A habitat and protection from predators

4

Carbon dioxide and oxygen for breathing

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Multiple Choice

How does the energy a consumer gets from its food originally enter an ecosystem?

1

It is created by the consumer when it moves.

2

It is transferred from the sun to a producer, which is then eaten.

3

It comes directly from the air and water in the ecosystem.

4

It is absorbed by the consumer's skin from the environment.

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Multiple Choice

In a food chain, energy flows from grasshoppers to frogs, and then from frogs to snakes. What would be the most likely outcome if the frog population disappeared?

1

The snakes would start getting their energy directly from the sun.

2

The transfer of energy from the frogs to the snakes would be disrupted.

3

The grasshoppers would have less energy available to them.

4

The frogs would find a new source of energy to pass on.

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Fueling Your Body: Key Nutrients

  • Carbohydrates provide energy; simple sugars offer a quick boost while complex starches offer lasting fuel.

  • Proteins are essential for building and repairing your body’s cells and tissues.

  • Fats provide a slow, long-lasting source of energy.

  • Vitamins and minerals help your cells use energy from the other nutrients.

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Multiple Choice

What is the primary function of proteins in the body?

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To provide a quick boost of energy

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To build and repair the body's cells and tissues

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To help digest other nutrients

4

To provide a long-lasting source of energy

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Multiple Choice

How do carbohydrates and fats compare in the way they provide energy?

1

Carbohydrates are for building cells, while fats are for repairing them.

2

Carbohydrates offer quick or lasting energy, while fats provide slow, long-lasting energy.

3

Carbohydrates help digest proteins, while fats provide a quick energy boost.

4

Carbohydrates provide slow energy, while fats provide a quick energy boost.

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Multiple Choice

A meal contains carbohydrates for energy and proteins for repair. Why are vitamins and minerals also essential for the body to benefit from this meal?

1

They turn carbohydrates and fats directly into protein.

2

They are the main source of long-lasting fuel for the body.

3

They are needed to help the body's cells access the energy provided by the other nutrients.

4

They are only useful for repairing the body's tissues after an injury.

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The Role of Water in the Body

  • Water is essential for life but has no energy; it's over half your body weight.

  • ​It helps transport oxygen, digest food, remove waste, and control your body temperature.

  • Not drinking enough water leads to dehydration, causing dizziness and headaches.

  • Drinks with caffeine are stimulants and do not provide your body with energy.

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Multiple Choice

What is a key function of water in the human body?

1

Providing the body with energy from calories.

2

Helping to transport nutrients and remove waste.

3

Acting as a stimulant to keep you awake.

4

Increasing the number of cells in your muscles.

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Multiple Choice

What is the relationship between water intake and symptoms like dizziness or headaches?

1

Drinking too much water causes these symptoms.

2

Not drinking enough water can lead to these symptoms.

3

These symptoms are only caused by caffeinated drinks.

4

Water intake has no effect on these feelings.

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Multiple Choice

A student feels dizzy after playing outside on a hot day. Why would drinking a caffeinated soda NOT be the best choice to help them feel better?

1

The soda has too much sugar, which will cause a crash.

2

Caffeinated drinks are stimulants and do not provide the body with the water it needs.

3

The carbonation in the soda would make the headache worse.

4

Water is only useful for digesting food, not for rehydration.

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Common Misconceptions

Misconception

Correction

Plants get their food from the soil.

Plants make their own food using air and water, not soil.

Photosynthesis is for animals.

Plants do photosynthesis for their own food; oxygen is a byproduct.

Energy is created from food.

Energy is transferred from the sun and released from food, not created.

All drinks will hydrate you.

Sugary and caffeinated drinks can be less hydrating.

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Summary
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Poll

On a scale of 1-4, how confident are you about the concepts covered in today's review?

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2

3

4

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Producers

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