How Plants Grow
This process allows plants to make their own food using sunlight.
Photosynthesis
Plants need this environmental factor as their main energy source.
Sunlight
This is a feature or behaviour that helps a living thing survive in its environment.
Adaptation
This term describes a large region with similar climate, plants and animals.
Biome
This is the factor you change in an experiment.
Independent Variable
This green substance in leaves absorbs sunlight needed for photosynthesis.
Chlorophyll
This gas from the air is needed for photosynthesis.
Carbon Dioxide
This type of adaptation refers to physical body features such as fur or beak shape.
Structural Adaptation
This biome is very dry and receives very little rainfall.
Desert
This is the factor you measure or observe.
Dependent Variable
This gas enters the leaf through tiny openings and is used to make glucose.
Carbon Dioxide
Too little or too much of this can cause plants to wilt or rot.
Water
Migration or hunting in groups are examples of this type of adaptation.
Behavioural Adaptation
This biome covers most of Earth’s surface and includes oceans and rivers.
The Aquatic Biome
This is a prediction about what will happen in an experiment.
Hypothesis
This sugar is produced during photosynthesis and provides energy for plant growth.
Glucose
Plants grow best within a suitable range of this environmental factor, which can be hot or cold.
Temperature
Producing venom or regulating body temperature are examples of this type of adaptation.
Physiological Adaptation
Some desert plants store water in thick stems.
Explain how this structural adaptation improves survival chances.
It allows the plant to survive long dry periods without rainfall
During an experiment a group accidentally changes two variables. Why will this make their results less reliable?
Because it's unclear which variable caused the change in results
A plant is placed in sunlight but given no water. After several days it begins to wilt.
Explain why water is still needed even when sunlight is available.
Water is needed for photosynthesis, transport of nutrients, and maintaining cell structure
Two plants are growing. One has large leaves, the other has very small leaves.
Predict which plant may grow better in a hot dry environment and justify why.
tThe plant with small leaves, because it loses less water through transpiration
Darwin observed that finch beaks changed over generations because birds with helpful traits survived and reproduced. This process is known as this.
Natural Selection
A sudden environmental change removes a species’ main food source.
Predict what may happen to the population over several generations.
The population will decline, adapt, or become extinct due to natural selection
Results do not support the hypothesis.
Explain why this is still valuable in science.
Experiments help scientists learn, refine ideas, and improve future investigations