This printable crossword puzzle on the topic of Human Body Systems has 40 clues. Answers range from 4 to 14 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Red blood cells are made here.
Bone that protects the brain
Bones are joined at these.
Biggest bone of the arm
These bones protect the heart and lungs
Structure that holds bones together
Structure that joins a muscle to a bone
Function of the synovial fluid
Type of joint
Condition where the cartilage at the end of the bones ir worn out
Name given to muscles that move in opposite direction
Hardest type of bone found in the outside of a bone
This tissue covers the end of the bones to reduce friction
Part of the ear that vibrates with sound
Name of one of the small bones found in the inner ear
Brain that connects the ear to the brain
Type of teeth for biting and cutting
Organism responsible for tooth decay
This chemical in toothpaste prevents cavities
Hard substance covering teeth
To thrive bacteria need warmth, moisture and ...
If we repeat an experiment several times the results are ...
This is the variable changed by the scientist
Name given to the process when a maggot turns into a fly
Part of the male reproductive system used to make sperm
Name of the hormone that gives males secondary sexual characteristics
Fertilisation takes place here
A fetus develps here
What happens on day 14 on the menstrual cycle?
Male gamete
This is when the nucleus of a sperm fuses with the nucleus of an egg
Fluid that surrouds a developing foetus
Organ of exchange between mother and foetus
The placenta and foetus are joined by the ...
Substances move across the placenta by a process known as...
Boys and girls go though this process when aged 10 or 11
Piece of equipment used to sample plants
This term describes how many species lieve in an ecosystem
This process returns carbon dioxide to the atmosphere
This process absorbs carbon dioxide from the atmosphere