Grade 7
What are organisms?
A living thing
What is a biotic element?
Any living thing in the environment
True or false: all matter is made of atoms
True
What is a cell?
A basic unit of life.
What is a unicellular cell?
Organism that relies on one cell to carry out all its functions to survive
What are species?
A group of similar organisms that can mate and reproduce to produce members of the same organism
What are producers? Why are they called producers?
Organisms that produce their own food. For example, plants
What is the primary source of energy for Earth?
The Sun
What do we use to see cells?
A microscope
True or false: unicellular organisms existed after multicellular organisms
False
What is this type of diagram called? (Get the diagram from Ms. Emily)
Food Web
List the 5 factors that all living things need to survive
Food, Water, Sunlight, Shelter, Air
List 3 simple machines
inclined plane, wedge, screw, lever, pulley and wheel-and-axle
List 3 types of cells that are in a human.
Blood cell, skin cell, liver cell (other answers considered)
List one differences between prokaryotic and eukaryotic cells
Prokaryotic cells do not have a membrane-bound nucleus or organells
Define Ecosystem
A biological community of abiotic and biotic elements interacting in an environment
Why are decomposers so important in an ecosystem?
They contribute to the cycling of matter - they break down organic matter so they can be reused
Which gas is most abundant in Earth's atmosphere?
Nitrogen
What are the 3 points in the cell theory?
All living things are made up of cells
The cell is the basic unit of life
All cells are created from existing cells
List 2 examples of unicellular organisms?
Yeast
Protist
Fungi
What is one example of an interaction in an ecosystem between a biotic and abiotic factor.
Many answers can be right
Describe how food chains are different than food webs
A food chain shows the flow of energy from one trophic level to another. A food web shows the interconnected food chains in an ecosystem.
List 3 things you should do in a science lab to stay safe
Wear a lab coat and goggles
Tie your hair up if it is long
Wear gloves if needed
Throw things in the correct garbage
Become aware of the showers, eye wash, exits
(other answers considered)
True or false: cells in multicellular organisms can take on specialized functions
True
What process to unicellular organisms use to get food?
Diffusion