Download AGUSTINIANO CIUDAD SALITRE SCHOOL SCIENCE AND

AGUSTINIANO CIUDAD SALITRE SCHOOL
SCIENCE AND ENVIRONMENT EDUCATION
SIXTH GRADE
REVIEW SECOND TERM
Name: _______________________________________________ Grade: ____________ Date: _________
I. Write true if the statement is true or false if the statement is false.
1. ____________ Singlecelled organisms use their cell surface as a point of exchange with the outside
environment.
2. ____________ In the inferior plants (bryophytes), circulation take place through the tissues called xylem and
phloem
3. ____________ Xylem transport the crude sap, composed of dissolved water and minerals.
4. ____________ Phloem transport the phloem sap resulting from the process of photosynthesis.
5. ____________ The open circulatory system is common in fish
6. ____________ Vertebrates and a few invertebrates, have a closed circulatory system.
7. ____________ Single circulation occurs when blood is pumped by the heart once.
8. ____________ Double circulation occurs in birds, amphibians, reptiles and insects.
9. ____________ Complete circulation arterial blood mixes with venous; this is because there is only one
Ventricle.
10. ____________ The components of cardiovascular system are: blood, heart, blood vessels and capillaries.
11. ____________ The components of the blood are: white blood cells, arteries, veins and platelets.
12. ____________ Gases like oxygen and carbon dioxide enter leaf through stomata.
13. ____________ Amoeba and paramecium are multicellular organisms that exchange oxygen and carbon
dioxide through the plasma membrane.
14. ____________ Gills contain blood vessels which carry the oxygen from the surrounding water to the cells
and carbon dioxide from the cells to the water.
15. ____________ Tracheal system are found in reptiles.
16. ____________ Terrestrial vertebrates use lungs for gas exchange.
17. ____________ Lungs are made up of spongy tissues divide into many air sacs called alveoli.
18. ____________ Tadpoles use lungs to exchange oxygen and carbon dioxide.
19. ____________ Birds no not have a diaphragm instead air is moved in and out of the respiratory system
through pressure changes in the air sacs.
20. ____________ In the process of inhalation the diaphragm contracts, flattening out.
II. Label with X according to the type of circulation of each living things
Living things
Diffusion
Open
circulation
Closed
circulation
Single
circulation
Double
circulation
Complete
circulation
Incomplete
circulation
1. Sponge
2. Human
3. Birds
4. Fish
5. Snake
6. Bacteria
7. Dog
8. Grasshopper
9. Frog
10. Turtle
11. Octopus
12. Annelid
13. Butterfly
14. Flatworm
15. Horse
III. Place the corresponding number
1. Red blood cells
_______ Consist of four chambers making up two mostly independents pumps.
2. Arteries
_______ Involved in immune system
3. Platelets
_______ Carry blood to the heart
4. Veins
_______ Involved in blood clotting
5. White blood
cells
_______ Involved in carrying oxygen
6. Capillaries
_______ Liquid part of blood. A dilute solution of salts, glucose, amino acids.
7. Plasma
_______ Carry blood away from the heart
8. Heart
_______ Create a net of channels between the smallest arteries and the smallest veins
IV. Label each on the diagram to the left and describe function below the structure
1. _______________________________
2. _______________________________
3. _______________________________
4. _______________________________
5. _______________________________
6. _______________________________
7. _______________________________
8. _______________________________
9. _______________________________
10. _______________________________
11. ________________________________
1. Mouth or Nose
2. Nasal cavity
3. Pharynx
4. Trachea
5. Bronchi
6. Bronchioles
7. Alveoli
V. Write the name of the parts that the following living things use for breathing
Living things
Part that t use to breathe
1. Cow
2. Frog
3. Dolphin
4. Crocodile
5. Paramecium
6. Plants
7. Ant
8. Fish
9. Snail
10. Beetle
VI. Choose the correct answer
1. When we inhale (breathe in), what happens to the pressure in the thorax?
a. It increases
b. It stays the same
c. It decreases
2. What happens when we exhale (breathe out)?
a. The diaphragm contracts and moves upwards
b. The diaphragm relaxes and moves upwards
c. The diaphragm relaxes and moves downwards
3. What happens when we inhale (breathe in)?
a. The external intercostal muscles contract and the ribcage is pulled upwards and inwards
b. The external intercostal muscles contract and the ribcage is pulled upwards and outwards
c. The internal intercostal muscles contract and the ribcage is pulled upwards and outwards