Food Chains
List the Properties of a Food Chain
1. Sun
2. Producer
3. Consumer
4. Decomposer
A type of organism that gets its energy directly from the Sun and is unable to move from place to place on its own
Plants
A very small life form, especially a bacterium
Microbe
The path an object takes as it revolves around another object in space
Orbit
The star at the center of the solar system that supplies heat and light to Earth
Sun
What is an Organism
Single self contained living thing
True or False: Plants grow only in warm-weather environments.
False
Decomposers are important in the nitrogen cycle. ________is one example of a type of decomposer.
Bacteria
The observable patterns caused by the rotation of Earth on its _______ impacts the length and direction of shadows throughout the day.
Axis
Name the Moon Phases
Full Moon
New Moon
Crescent Moon
Gibbous Moon
1st Quarter
Last Quarter
What is photosynthesis?
Photosynthesis is the process in which plants use the Sun’s energy to make their own food.
What is an ecosystem?
An ecosystem is a community of living and nonliving things interacting with and depending on one another for survival.
What is the carbon cycle?
The carbon cycle is the process in which carbon from the air is absorbed by plants and combined with water to form carbohydrates and oxygen that animals can use.
Do the Sun and stars move across the sky?
The Sun and stars do not move across the sky. Earth’s rotation causes them to appear to move across the sky.
How can we describe stars?
We can describe stars by size, color, brightness, mass, and the temperatures on their surfaces.
Which of the following best explains the primary role of decomposers in ecosystems? Decomposers –
A. break down dead organisms and recycle materials.
B. provide an important source of food for many animals.
C. change matter that is not food into matter that is food.
D. extract water from soil and release it into the atmosphere.
A. break down dead organisms and recycle materials.
In any ecosystem, which of the following must be present in order to support the needs of all the animals?
A. Tall cliffs or mountains are needed to provide places for shelter.
B. Plants are needed to transform energy from the Sun into food.
C. Soft soil is needed to allow digging and burrowing.
D. Wide-open spaces are needed to watch for predators.
B. Plants are needed to transform energy from the Sun into food.
Describe how decomposers enrich soil and help other organisms survive. Be sure to describe what is produced during decomposition and how this benefits organisms in the environment.
Decomposers break down dead plants and animals. They return some of their elements and water to the soil, which helps plants grow.
Saturn rotates on its axis approximately once every 10 hours. From this information, it can be concluded that Saturn will differ from Earth in which of the following ways?
A. Saturn will have more extreme seasonal temperature changes than Earth.
B. The length of one year on Saturn will be twice as long as on Earth.
C. Shadows cast on the surface of Saturn will be shorter than on Earth.
D. A day/night cycle on Saturn will be less than half the time of the same cycle on Earth.
D. A day/night cycle on Saturn will be less than half the time of the same cycle on Earth.
Which of the following does not follow a predictable pattern?
A. The phases of the Moon
B. The visibility of constellations in certain months
C. The length of daylight hours
D. The occurrence of earthquakes
D. The occurrence of earthquakes
How does the energy we get from food relate to the Sun?
The Sun is the energy source for all energy in a food web. For example, we eat salads. The lettuce in the salad we eat is a producer and makes its own food using the energy from the Sun. Without the Sun, we would not have the food we eat.
How is the way that plants get energy different from the way that animals get energy?
Plants are producers and make their own food using air, water, and energy from the Sun. Animals are consumers and eat plants and other animals for food to get energy.
Matter moves directly from plants to animals when plants are eaten by animals. Matter also moves from plants to animals indirectly through -
A. Sunlight
B. Heat
C. Adaptations
D. Air
D. Air
When you walk outside in the morning, you notice a shadow on the ground from a tree in your yard. When you get home in the afternoon, you notice the shadow is in a different place. Why did the shadow move?
Earth rotates on its axis and changes the position of the tree in relation to the Sun. This causes the shadow to move.
What characteristic affects how bright a star appears to us?
A star’s distance from Earth affects how bright it appears to us.