Which of the following is an example of a producer in a food chain?

• Frog

• Grass

• Snake

• Hawk

What might happen to the number of insects in a pond if all the frogs are removed?

• The number of insects will increase.

• The number of insects will decrease.

• The number of insects will stay the same.

• The insects will turn into frogs.

If you find a fossil of a fish in the desert, what can you infer about the past environment of that area?

• It was always a desert.

• It was once covered by water.

• It was always a forest.

• It was always a mountain.

Which of the following best describes the flow of energy in a food chain?

• From animals to plants

• From plants to animals

• From the sun to plants to animals

• From animals to the sun

Which of the following is a common Texas fossil?

• Dinosaur bone

• Plastic bottle

• Fresh apple

• Modern bird feather

If bees are removed from a field, what is a likely effect on the plants in that field?

• Plants will grow faster.

• Plants may not be pollinated and could decrease.

• Plants will turn into bees.

• Plants will become animals.

Which of the following is a natural change to the environment?

• Building a playground

• Flood

• Planting a garden

• Painting a house

A student finds a fossil shell on a hill in Texas. What does this tell us about the area long ago?

• It was once underwater.

• It was always a desert.

• It was always a forest.

• It was always a mountain.

A food chain in a pond is: Sun → Algae → Small Fish → Big Fish → Heron. If the small fish population decreases, what might happen to the big fish?

• The big fish population may decrease.

• The big fish will increase.

• The big fish will turn into herons.

• The big fish will not be affected.

What are fossils?

• Living animals

• Remains or traces of past living organisms

• Pieces of plastic

• New plants