Study Guide for Human Body Test

Name: Date:

Group:

Study Guide for Human Body Test

Define the following:

1. Independent Variable –

2. Dependent Variable –

3. Constant (Controlled Variable) –

4. Prototype -

Matching (Some systems may be used more than once):

___ 5. Makes red blood cells a. Digestive System

___ 6. Breaks down food to absorb nutrients the body can use b. Nervous System

___ 7. Protects, supports and allows for movement c. Skeletal System

___ 8. Senses the environment around you

9. What is the difference between an observation and an inference?

_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

10. The following bold words are parts of a well-designed experiment:

Why is it important to have a larger sample size?

__________________________________________________________________________________________________________________________________________________________________________

Why is it important to do multiple trials?

__________________________________________________________________________________________________________________________________________________________________________

Explain why you should have a control group when doing an experiment.

__________________________________________________________________________________________________________________________________________________________________________

11. Identify the following as qualitative (QUAL) or quantitative (QUAN):

_____ The oil painting weighs eight pounds.

_____ The painting has many brush strokes.

_____ My advisory has a positive school spirit.

_____ I joined an after school club with eleven other environmentalists.

_____ The seventh grade is extremely civic minded.

12. Match the following to the correct system:

A. Skeletal System B. Digestive System C. Nervous System

_____ Nose/Mouth _____ Bone Marrow _____ Pancreas

_____ Hinge joint _____ Brain _____ Small Intestine

_____ Spinal cord _____ Esophagus _____ Ligaments

_____ Nerves

13. What is the purpose of the villi in the small intestine?

_____________________________________________________________________________________

14. Circle the organs which help with mechanical breakdown.

Mouth, esophagus, stomach, small intestine, large intestine, liver, pancreas

15. Circle the organs which help with chemical breakdown.

Mouth, esophagus, stomach, small intestine, large intestine, liver, pancreas

16. Why did breaking down the alka-seltzer tablet into smaller pieces (mechanical breakdown) help with chemical breakdown (the vinegar)? __________________________________________________________________________________________________________________________________________________________________________

17. What is the level of organization in the body (from smallest to largest)?

__________________________________________________________________________________________________________________________________________________________________________

18. What is the path that food takes through the digestive system? (Think about the song)

__________________________________________________________________________________________________________________________________________________________________________

19. What are 4 functions of the liver (an organ which food does not pass through)?

__________________________________________________________________________________________________________________________________________________________________________

20. List the three different types of muscles and give an example of where you might find each of them.

__________________________________________________________________________________________________________________________________________________________________________

21. What are the three types of neurons? In what order would a message travel through these neurons if you were to feel a toothpick on the palm of your hand?

22. The two main joints are hinge and ball-and-socket joints. Explain the movement that each of these joints allows you to make.

23. Explain the structure of a bone and how it helps it function the way it does (strong yet light).

24. A florist wants to see if Product X will extend the life of cut flowers so they last longer. Each day, for one week, the florist adds a capful of Product X to five cut roses. He compares them every day for a week to another 5 roses that are not receiving Product X. He then records the color, firmness of the stem, and whether any petals have fallen over the course of the week.

What could be the florists’ hypothesis (If, then, because)?

What could he do to increase his sample size? Why is it important to have a larger sample size?

What factors would he need to control in his experiment?