8th Grade Science Vocabulary Crossword

Structure found in plant cells, but not in animal cells.
Organisms that get energy from their food to carry out all life functions.
Plant and meat eaters.
Organisms that contain more than one cell.
Group of cells of the same type working together to perform a common function.
Digestive process such as chewing that physically breaks apart food.
Chemicals such as saliva and stomach acid break down food.
System of the body that removes excess waste from the body. Includes heat, water, etc.
Sum of all the chemical processes in the human body.
Reproduction where all of the offspring's genes came from one parent.
When 23 chromosomes from a sperm cell combines with 23 chromosomes from an egg cell.
Abnormal cell division causes this health problem.
Organisms are classified as producers or consumers according to the way they obtain ________.
Mushrooms break down logs for food making it a ____________.
What causes infectious diseases in the human population?
A huge grassland area with few trees.
An area composed of all different organisms.
Stages of development of a butterfly.
Path of a ray of light as it passes from air into water.
As temperature increases, speed of molecules _____________.
The thin, solid outer shell of the Earth.
Heat is transferred by _________ as warm air rises and cold air falls.
A liquid expands when heated and ______ when cooled.
_______ force between two objects is most affected by their mass and distance apart.
Day and night are equal length.