Plants
What do plants need from the environment to grow?
Water, light, air, and matter/nutrients.
What is an ecosystem?
A community of living and nonliving things interacting in an environment.
What do all living things need to survive?
Resources such as water, food/matter, air, and suitable conditions.
What is a hypothesis?
A testable prediction about what will happen.
What is data?
Information collected during an investigation.
What part of a plant absorbs water and minerals from the soil?
Roots
Name one biotic factor in an ecosystem.
A living thing such as a plant, animal, or fungus.
What is a producer?
An organism that makes its own food, usually a plant.
What is the independent variable?
The variable the scientist changes.
What a the different types of graphs?
Bar Graph, Line Graph, Pie Chart, Pictograph, and Scatter plots
Why is soil important to plants?
Soil provides water and matter/nutrients that plants need to grow.
Name one abiotic factor in an ecosystem.
A nonliving factor such as sunlight, water, soil, air, or temperature.
What is a consumer?
An organism that gets energy by eating other organisms.
What is a dependent variable?
What the scientist measures or observes.
If Plant A grows 8 cm and Plant B grows 4 cm, which plant grew more?
Plant A
What is a fair test?
An investigation where only one variable is changed while other conditions stay the same.
How can a change in one part of an ecosystem affect other organisms?
Organisms depend on one another and their environment to survive.
Why are plants important to many ecosystems?
They provide food and help support other organisms.
Why do scientists repeat investigations?
To make results more reliable and identify patterns.
A student claims, “Plants need water to grow.” What could be evidence?
A plant given water grew while a similar plant without water did not.
A student gives one plant water and another plant no water. What variable is being tested?
The amount of water.
If a drought causes plants to die, how could this affect animals?
Animals may lose food and shelter, causing their populations to decrease.
What might happen if all the plants disappeared from an ecosystem?
Many organisms would lose food and the ecosystem could become unbalanced.
Why should scientists use evidence when making a claim?
Evidence supports whether the claim is reasonable or accurate.
A graph shows that plants receiving more sunlight grew taller. What conclusion could you make?
Sunlight may affect plant growth.