WorksheetsWeb of Life: Mystery 7
Total questions: 11
Worksheet time: 9mins
1. Which correctly shows the flow of energy through a food web?
producers ---> decomposers ---> consumers
producers ---> consumers ---> decomposers
decomposers ---> producers ---> consumers
2. Choose the statement that most accurately describes why the dinosaurs died.
a. The dinosaurs died from earthquakes set off by the asteroid impact.
b. The dinosaurs burned up instantly from a giant fireball caused by the asteroid.
c. Most dinosaurs starved due to the collapse of their food webs.
d. Most dinosaurs suffocated because they couldn’t breathe air full of asteroid dust.
e. The dinosaurs froze to death when the sun was blocked out.
3. True or False: Scientists have reason to think NOT ALL dinosaurs died in the Cretaceous extinction.
True
False
4. How do scientists learn so much about dinosaurs?
They study them in the wild.
They study their fossils.
They watch Jurassic Park.
They read lots of books.
5. Scientists can assume that dinosaurs with broad, flat teeth were ______.
carnivores
producers
decomposers
herbivores
6. Scientists can assume that dinosaurs with sharp, pointy teeth were ______.
carnivores
producers
decomposers
herbivores
7. Which organisms were most likely to survive the Cretaceous extinction? Choose all that apply. There are 2 correct answers.
Herbivores
Large animals
Carnivores
Decomposers
Plants
8. How can scientists tell which fossils are the oldest?
The oldest fossils would be on the surface.
The oldest fossils are found in the ocean.
The oldest fossils would be the deepest.
The oldest fossils would be the dirtiest.
9. How do scientist determine what a dinosaur ate?
They look at the contents inside their stomachs.
They study the shape and size of their teeth.
They study the plant life in the area where they found the dinosaur.
They Google it.
10. Caterpillars are small insects that can grow very quickly. Some caterpillars can double in size in just one day! Caterpillars have to eat a lot of food so that they have the energy to grow that quickly. The diagram below shows a food chain including a caterpillar. What does the above food chain show? There are 2 correct answers.
Caterpillars get their energy directly from the Sun.
Caterpillars get their energy directly from plants.
Caterpillars use energy that originally came from the Sun. But they can’t use energy directly from the Sun.
Caterpillars give energy to plants, and plants give energy to the Sun.
11. Caves are amazing underground places. Sunlight can shine into the openings of caves, but deep inside caves, it can become completely dark. Even in some of the darkest caves, though, you can find living things. Read the following cards about three types of real living things that can be found in or near caves.
Cave fish don’t even see the Sun for their entire lives, but the Sun is still the original source of their energy. How can this be? Put the organisms in order below to complete the food chain.
sun
plants
cave crickets
cave fish
