Science Skills Challenge

What type of simple machine is a seesaw?

• screw

• lever

• wheel

• pulley

Explain the process of photosynthesis in plants.

• Photosynthesis requires the use of nitrogen gas instead of carbon dioxide.

• Photosynthesis is the process of converting sound energy into chemical energy in plants.

• Photosynthesis in plants involves the conversion of light energy into mechanical energy.

• Photosynthesis in plants is the process of converting light energy into chemical energy stored in glucose molecules, using chlorophyll, carbon dioxide, and water.

In a food chain, what is the role of a producer?

• Regulate the population of other organisms

• Provide shelter for other organisms

• Hunt for food in the wild

• Produce food through photosynthesis or chemosynthesis

Differentiate between primary consumers and secondary consumers in a food chain.

• Primary consumers are carnivores, while secondary consumers are herbivores.

• Primary consumers are decomposers, while secondary consumers are producers.

• Primary consumers are autotrophs, while secondary consumers are heterotrophs.

• Primary consumers are herbivores, while secondary consumers are carnivores.

Classify a lion as a carnivore, herbivore, or omnivore.

• herbivore

• omnivore

• vegetarian

• carnivore

What is the main source of energy for herbivores in a food chain?

• Plants

• Water

• Sunlight

• Meat

Identify the simple machine used to lift heavy objects.

• Wheel and axle

• Screw

• Pulley

• Lever

How do omnivores differ from herbivores and carnivores in terms of diet?

• Omnivores only consume plants

• Herbivores primarily eat meat

• Omnivores have a diet that includes both plant and animal matter, whereas herbivores only consume plants and carnivores primarily eat meat.

• Carnivores have a diet that includes both plant and animal matter

Explain the concept of energy transfer in a food chain.

• Energy transfer in a food chain occurs through photosynthesis only.

• Energy transfer in a food chain involves the movement of matter from consumers to producers.

• Energy transfer in a food chain involves the movement of energy from producers to consumers through feeding interactions.

• Energy transfer in a food chain is not influenced by the environment.

Name one example of a herbivore in the wild.

• wolf

• deer

• lion

• elephant