Environmental Changes on Organisms - 3rd Grade Science
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What is hibernation?
What is hibernation?
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A deep resting state some animals use to survive cold or low food. Hibernation saves energy when food is scarce.
A deep resting state some animals use to survive cold or low food. Hibernation saves energy when food is scarce.
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What is migration?
What is migration?
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Movement of animals to a new place to find food, water, or shelter. Migration helps animals survive seasonal changes.
Movement of animals to a new place to find food, water, or shelter. Migration helps animals survive seasonal changes.
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Which environmental change can reduce available water fastest: drought or extra rainfall?
Which environmental change can reduce available water fastest: drought or extra rainfall?
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Drought. Droughts quickly dry up water sources.
Drought. Droughts quickly dry up water sources.
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What is an environmental change?
What is an environmental change?
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A change in an organism’s surroundings that can affect survival. Environmental changes can be natural or human-caused events.
A change in an organism’s surroundings that can affect survival. Environmental changes can be natural or human-caused events.
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What is a resource in a habitat?
What is a resource in a habitat?
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Something organisms need, such as food, water, space, or shelter. Resources are essential for an organism's survival.
Something organisms need, such as food, water, space, or shelter. Resources are essential for an organism's survival.
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Which environmental change is a natural disaster: drought, recycling, or feeding pets?
Which environmental change is a natural disaster: drought, recycling, or feeding pets?
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Drought. Natural disasters occur without human involvement.
Drought. Natural disasters occur without human involvement.
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Which type of pollution is shown: Trash and chemicals enter a river.
Which type of pollution is shown: Trash and chemicals enter a river.
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Water pollution. Trash and chemicals contaminate water sources.
Water pollution. Trash and chemicals contaminate water sources.
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Which change is most likely to harm a polar bear: melting sea ice or more snow?
Which change is most likely to harm a polar bear: melting sea ice or more snow?
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Melting sea ice. Polar bears need sea ice to hunt seals.
Melting sea ice. Polar bears need sea ice to hunt seals.
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Identify the environmental change: A new plant spreads quickly and pushes out native plants.
Identify the environmental change: A new plant spreads quickly and pushes out native plants.
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Invasive species introduction. Invasive plants compete with native species for resources.
Invasive species introduction. Invasive plants compete with native species for resources.
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What is habitat loss?
What is habitat loss?
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When a habitat is destroyed or changed so organisms cannot live there. Habitat loss is a major threat to many species.
When a habitat is destroyed or changed so organisms cannot live there. Habitat loss is a major threat to many species.
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What is drought?
What is drought?
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A long period with very little or no rainfall. Droughts can last weeks, months, or even years.
A long period with very little or no rainfall. Droughts can last weeks, months, or even years.
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What is a flood?
What is a flood?
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An overflow of water that covers land that is usually dry. Floods can damage habitats and displace organisms.
An overflow of water that covers land that is usually dry. Floods can damage habitats and displace organisms.
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Identify the environmental change: A new road removes trees from a forest area.
Identify the environmental change: A new road removes trees from a forest area.
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Habitat loss (deforestation). Removing trees destroys forest habitats.
Habitat loss (deforestation). Removing trees destroys forest habitats.
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What is a wildfire?
What is a wildfire?
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A large, uncontrolled fire that burns plants in a natural area. Wildfires can destroy habitats but also help some ecosystems.
A large, uncontrolled fire that burns plants in a natural area. Wildfires can destroy habitats but also help some ecosystems.
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What is camouflage?
What is camouflage?
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A body coloring or pattern that helps an organism blend into its habitat. Camouflage helps organisms hide from predators or prey.
A body coloring or pattern that helps an organism blend into its habitat. Camouflage helps organisms hide from predators or prey.
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