Life cycles of flowering plants
What are flowering plants?
These plants produce flowers and usually make seeds inside fruits.
What is an adaptation?
describes a special feature or behavior that helps a plant or animal survive in its habitat.
What is chlorophyll?
Plant leaves are green as they contain a green substance.It helps leaves to produce food for the tree.
How long does it take Earth to move once around the Sun?
Earth takes about 365 days to complete one full orbit around the Sun.
What is condensation?
This change of state happens when a gas cools down and turns back into a liquid.
What are non-flowering plants?
These plants do not produce flowers and reproduce using spores or cones.
What are webbed feet?
This type of feet, found in animals like ducks, helps them move easily through water.
What is dormant period?
A dormant period is a time when a plant or animal is alive but not growing or active, in order to survive difficult conditions.
What is the angle of the Earth’s tilt?
The Earth is tilted at about 23.5 degrees on its axis.
What happens to particles when a solid melts?
During melting, particles gain energy, move faster, and begin to break free from their fixed positions.
What is the ovary?
This part of a flowering plant develops into a fruit after fertilization.
What is a physical adaptation?
An adaptation that involves a body feature, such as thick fur or sharp claws.
What is hibernation?
It describes how the animal's body goes into a dormant state for a long period of time.
What causes the seasons on Earth?
Seasons are caused by the Earth’s tilt and its movement around the Sun, not by the distance from the Sun.
Why do materials expand when they are heated?
Heating causes particles to move faster and spread further apart, which explains why most substances expand when heated.
What is a fern?
An example of a non-flowering plant that reproduces using spores and grows well in damp places
What is a predator?
This term describes an animal that hunts and eats other animals.
What is migration
Animals migrate to survive. They move from one place to another at certain times of the year to find food, warmer weather, or safe places to have their babies. Migration usually happens because of changes in seasons.
What happens when the Northern Hemisphere is tilted toward the Sun?
When the Northern Hemisphere is tilted toward the Sun, it experiences summer, while the Southern Hemisphere experiences winter.
What is a solute?
This is the substance that dissolves in a liquid.
What is the stamen?
This is the male part of a flower that produces pollen.
What are physical adaptations for hunting?
Sharp talons and excellent eyesight in an eagle help it catch small animals such as mice; this shows how a predator’s physical features are suited to its role in the food chain.
Why do seasons change on Earth?
Seasons change because the Earth is tilted on its axis as it moves around the Sun, causing different parts of the Earth to receive different amounts of sunlight during the year.
Why do we have a leap year every four years?
A leap year happens every four years because Earth’s orbit actually takes about 365¼ days, so we add one extra day to keep our calendar accurate.
What is a saturated solution?
When no more solute can dissolve in a solvent at a certain temperature, the solution is described as this.