food web
energy flow (ecosystem)
producers/consumers
elements
compounds/mixtures
100
Animals like a fox, a wolf, a tiger, and a lion are generally placed on the top of an energy pyramid. Why are these consumers not placed directly above producers?
A They are fewer in number.
B They are unable to use solar energy.
C They are carnivores.
D They are physically stronger than all other animals in the pyramid.
B. They are carnivores.
100
Collection of all organisms that live in a particular place, together with their nonliving environment.
What is Ecosystem?
100
what is a producer ?
a plant / something that makes its own food
100
What is the "stuff" that makes up everything in the universe?
What is matter?
100
A compound consists of ______________ kinds of atoms chemically bound to each other.
two or more
200
The image shows an energy pyramid.
A student wants to add a population of herbivores to the energy pyramid. In which level should the population be placed?
A level R
B level S
C level T
D level U
level S.
200
Organisms that capture energy from sunlight or chemicals and use it to produce food from inorganic compounds.
What is a Producer?
200
Primary consumers are:
a. animals that eat plants and other animals
b. animals that eat other smaller animals
c. animals that eat only plants
d. animals that eat birds
c. animals that eat only plants
200
What is a substance that cannot be broken down into a simpler substance?
What is an element?
200
Which is the following is true about a diamond which is made up of carbon atoms only?
A. It is homogeneous
B. It is heterogenous
C. Neither
c. Neither
Diamonds are pure substances because they are made of carbon.
300
A student observes a diagram of an ecosystem surrounded by land in a textbook, as shown.
How should the student identify the ecosystem based on the community of organisms shown in the diagram?
A salt marsh
B river channel
C pond
D ocean
c pond.
300
Organisms that can capture energy from sunlight or chemicals and use it to produce its own food.
What is Autotroph?
300
What group is at the base/bottom of the food chain energy pyramid?
Producer
300
Kool-Aid is an example of a __________.
What is solution?
300
rue or false: Sodium is a compound.
False
Sodium is an element. Salt is a compound.
400
The pictures show the parts of a food chain.
Which word describes the function of the oak tree?
A carnivore
B consumer
C herbivore
D producer
D producer.
400
A series of steps in an ecosystem where organisms transfers energy by eating and being eaten.
What is the Food Chain?
400
The top of the energy pyramid is called
what is tertiary?
400
What is the smallest particle of matter that has all of the element's characteristics?
What is an atom?
400
Does mixing oil and water create a homogeneous mixture? Why or why not?
Mixing oil and water creates a heterogeneous mixture because we can see the oil and the water.
500
Imagine that the rainforest had received less rainfall than usual, what would be affected by this change first?
A carnivores
B consumers
C herbivores
D producers
D producers.
500
This is a step in a food chain or food web.
What is Trophic Level?
500
What are some examples of tertiary consumers we would find living in our area? (multiple choice)
A. deer,
B. hawks,
C. owls,
D. rodents,
E. snakes
2. hawks, 3. owls
500
A bond where atoms share electrons is called a __________ bond.
What is covalent bond?
500
Why does air not have a definite formula?
(For example: water's formula is H20)
Air does not have a definite formula because it is not a compound.
Air is a mixture because it is a mixture of multiple different compounds like oxygen, carbon dioxide, hydrogen, and more.