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  5. Food Web Disturbance

Food Web Disturbance

Cascade Board

A 6th–8th model board: a species is cut from a real web, not a one-meal chain. Most animals eat more than one thing. Drag Crash or Rises onto the card that changes. Crash only if the last food is gone.

Science6th–8th
Food Web Disturbance - A 6th–8th model board: a species is cut from a real web, not a one-meal chain. M

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How to Play Cascade Board

  1. 1

    Read the cut

    One species is already removed from the model.

  2. 2

    Follow every arrow

    Most animals eat more than one thing. Crash only if the last food is gone.

  3. 3

    Drag a tag

    Crash if it lost every food. Rises if it lost its only hunter. Hard mode asks for the second change too.

Key Features

  • A web, not a chain

    Arrows show every meal. A rabbit that still has sagebrush does not crash when grass is cut. The specialist that lost every food does.

  • Crash or Rises

    Drag a tag onto the organism that changes. Crash if it lost every food. Rises if it lost its only hunter.

  • Hard is a cascade

    Grasshopper crashes, then hawk crashes. Or a hunter is gone, numbers rise, and one plant is eaten down. Two stamps. Three lives. Eight models.

    • What is a food web disturbance?

    A food web is a model of energy flow with more than one path. Most animals eat more than one food. If one plant is removed, a generalist still has another meal and does not crash. A specialist that lost every food does crash, and that change can ripple to its hunter. Middle school science uses these models to predict ecosystem disturbance.

    Why play Cascade Board?

    • 1

      Middle-school science

      Built for 6th–8th energy-flow and disturbance standards. It is a web with leftover meals, not a 3rd-grade one-arrow chain.

    • 2

      Assign in a period

      A short stamp run fits a Chromebook station.

    Frequently Asked Questions

    Why doesn’t the rabbit crash when grass is gone?

    Because the arrows still give it sagebrush. Crash is only for the animal that lost every food.

    Is this a who-eats-whom game?

    No. The arrows are already on the board. You stamp Crash or Rises after a species is removed.

    What grades is it for?

    6th, 7th, and 8th grade. It is not tagged for 3rd grade.