Brine Shrimp Ecosystem Experiment Concepts

Mr. Abner introduces sixth graders to ecosystems, focusing on abiotic and biotic factors. The class explores components like organisms, populations, and communities. They discuss abiotic factors such as soil, air, and water. An experiment is conducted using brine shrimp in ecosystems with varying salt levels to observe survival rates. Students make observations, sample populations, and analyze results to understand the impact of abiotic factors on biotic components.

What is the term for a group of the same species living together in an ecosystem?

• Organism

• Population

• Habitat

• Community

Which of the following is NOT a biotic factor in an ecosystem?

• Plants

• Animals

• Soil

• Insects

In the classroom experiment, what organism was used to study the effect of salt?

• Goldfish

• Algae

• Brine shrimp

• Frogs

What behavior do brine shrimp exhibit when exposed to light?

• They become inactive

• They move towards the light

• They remain stationary

• They move away from the light

What was the highest concentration of salt used in the experiment?

• 10 grams

• 5 grams

• 15 grams

• 2.5 grams

What was the result of the brine shrimp population in the no salt solution?

• Fluctuating population

• High population

• Moderate population

• No population

Which salt concentration showed the most movement of brine shrimp?

• 0 grams

• 2.5 grams

• 7.5 grams

• 15 grams

What is the term for non-living components in an ecosystem?

• Biotic

• Abiotic

• Inorganic

• Organic

Why are eggs considered biotic even if they are not moving?

• They are part of the soil

• They are abiotic

• They were once living or could become living

• They are non-living

What was the main purpose of the classroom experiment with brine shrimp?

• To measure water temperature

• To investigate the impact of salt on brine shrimp survival

• To study the effect of light on animals

• To observe plant growth