Which of the following is a difference between a meteor and a comet?

1. Meteors are mostly made up of ice.

   No. Meteors are made up of rock or iron, Comets are mostly made up of ice.

2. Only comets have a visible tail.

   No. A meteor is a meteoroid that has entered our atmosphere. As it burns, it also produces a tail.

3. Meteors seem to move faster because they are closer.

   Yes. Meteors are entering our atmosphere, so they are much closer to us that a distant comet. That makes them seem to move much faster.

4. Comets are smaller than meteors.

   No. Meteors are small, often the size of a grain of sand. Comets are much larger.

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Which part of your body comes closest to serving the same function as a plant's roots?

1. Mouth

   Yes! The main functions for most plant roots is to anchor it in place and to take in water and nutrients from the soil. We do not need anything to anchor us in one place, but we use our mouth to take in water and nutrients.

2. Feet

   No. A plants roots anchor into in place, keeping it from moving. Your feet do not do that.

3. Lungs

   No. A plant takes in air through its leaves, not through its roots.

4. Skeleton

   No. Your skeleton supports your body and protects your organs. In plants, this is done by the cell walls. The cell wall around each cell of a plant make it stiff, supporting stems, leaves, flowers, and other parts of the plant.

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