TMS Science 7 Semester 2 Study Guide (Re-engagement) 2025

Front

What is the Law of Conservation of Mass?

Back

The Law of Conservation of Mass states that in a chemical reaction, the mass of the reactants must equal the mass of the products, meaning the number of atoms in the reactants must equal the number of atoms in the products.

Front

What are the products of photosynthesis?

Back

The products of photosynthesis are oxygen and glucose.

Front

What is biodiversity?

Back

Biodiversity is the variety of living organisms in a particular habitat or ecosystem.

Front

Which molecule is broken down to release chemical energy during cellular respiration?

Back

Glucose is the molecule that is broken down to release chemical energy during cellular respiration.

Front

What happens to resources in a population at time 'A' if there is an increase?

Back

If there is an increase in resources at time 'A', it means that the population has more food, water, or space available, which can support growth.

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water.

Front

Define ecosystem.

Back

An ecosystem is a community of living organisms interacting with their physical environment.

Front

What role do producers play in an ecosystem?

Back

Producers, such as plants, create their own food through photosynthesis and provide energy for other organisms in the ecosystem.

Front

What is the significance of decomposers in an ecosystem?

Back

Decomposers break down dead organic matter, recycling nutrients back into the soil and supporting new plant growth.

Front

How does energy flow through an ecosystem?

Back

Energy flows through an ecosystem from producers to consumers and then to decomposers, following a food chain.