Soil & Nutrients (Chapter 1)
Healthy soil contains water and __________________.
Nutrients
Plants need sunlight, water, and __________ to grow.
What are nutrients
Matter is the “__________” everything is made of.
What is stuff?
All energy in an ecosystem starts with the __________.
What is the sun?
A diagram that shows who eats whom.
What is a food web?
Name one thing that can be found in soil.
What are rocks / minerals / water / dead matter / decomposers?
Plants make food using this process.
What is photosynthesis?
Decomposers break down matter and return __________ to the soil.
What are nutrients?
Plants get energy directly from the __________.
What is sunlight?
An organism that makes its own food is a __________.
What is a producer?
Why does soil differ from place to place?
What is differences in climate, organisms, minerals, and nutrients?
Why did we remove dead plants from the terrarium?
What is to prevent rot and allow healthy plants to grow?
Give an example of matter moving through an ecosystem.
What is plant → animal → decomposer → soil → plant?
Animals get energy by __________________.
What is eating plants or animals?
What would happen if all decomposers disappeared?
Nutrients wouldn’t return to soil; plants would not grow well.
Plants grown in nutrient-poor soil will do what?
What is grow slowly / become unhealthy?
How do plants use matter to grow?
What is they change food molecules into plant body molecules?
In Chapter 2, how did the classroom model show matter being reused?
What is matter never disappears; it cycles through organisms?
Energy moves through an ecosystem in __________.
What are food chains or food webs?
If a population of consumers decreases, what will likely happen to their prey?
What is the prey population will increase?
What role do decomposers play in soil formation?
What is they break down matter to release nutrients into the soil?
Explain how plants get matter from the air.
What is they take in carbon dioxide, which becomes part of their body?
Explain how decomposers help keep matter cycling.
They break down dead organisms so plants can reuse the nutrients.
Explain why energy does NOT cycle the way matter does.
What is energy is used up/lost as heat and must be replaced by sunlight?
Explain why top predators still depend on plants.
They eat animals that ate plants—energy originates with producers.