Life Science - 8th Grade - Chapter 4-6 Review

40 Questions  I  By Divinemercyacademy
Life ScienceSeton Home Study School EditionAll Creatures Great and Small

  
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1.  Weight is the downward force of an object due to gravity.
A.
B.
2.  Mitochondrion is ___________________________________.
A.
B.
C.
D.
3.  Which part is the area where food molecules are broken down?
A.
B.
C.
4.  What percent of your body weight is water?
5.  A compound microscope is used to measure very small objects or organisms.
A.
B.
6.  Select all that are correct.
A.
B.
C.
D.
E.
F.
G.
H.
I.
7.  A living organism can have just one cell.
A.
B.
8.  The symbol for oxygen is __________.
A.
B.
C.
D.
9.  Which of the following is the smallest?
A.
B.
C.
10.  A carefully marked tube of glass or plastic that is used to determine the volume of a liquid is called a
A.
B.
C.
D.
E.
F.
11.  There are more than __________ kinds of atoms.
A.
B.
C.
D.
12.  Semipermeable means __________________________________________.
A.
B.
C.
13.  An atom is the smallest part of a compound with all the properties of the compound.
A.
B.
14.  The symbol for potassium is ________________.
A.
B.
C.
D.
15.  Which of the following is not a part of the compound microscope?
A.
B.
C.
D.
E.
F.
16.  Which of the following are compounds? (check 4)
A.
B.
C.
D.
E.
F.
G.
H.
17.  An element is ________________________________________.
A.
B.
C.
D.
18.  Protoplasm is living matter.
A.
B.
19.  Check each item if it is part of the structure of an atom.
A.
B.
C.
D.
E.
20.  All living things are made up of more than 15,000,000,000 cells.
A.
B.
21.  Fe is the symbol for ________________.
A.
B.
C.
D.
22.  Which element is the most abundant in your body?
A.
B.
C.
D.
23.  A thermometer is used to measure calories.
A.
B.
24.  Which of the following is the smallest?
A.
B.
C.
25.  Chromosomes are ______________________________.
A.
B.
C.
D.
26.  Na is the symbol for _______________.
A.
B.
C.
D.
27.  Osmosis is ___________________________________.
A.
B.
C.
D.
28.  A molecule is the smallest part of an element with all the properties of the element.
A.
B.
29.  What is this instrument?
A.
B.
C.
D.
30.  An molecule is the smallest part of a compound with all the properties of the compound.
A.
B.
31.  Approximately how many atoms can be found in a single drop of water?
A.
B.
C.
D.
E.
32.  A molecule is ________________________________________.
A.
B.
C.
D.
33.  Weight is the amount of matter in an object.
A.
B.
34.  An atom is the smallest part of an element with all the properties of the element.
A.
B.
35.  Protoplasm is a cell wall.
A.
B.
36.  The nucleus of an atom is the ______________________.
A.
B.
C.
D.
37.  Which of the following is incorrect?
A.
B.
C.
38.  Bright light will "scare" many microbes away, which part of the compound microscope allows you to reduce the light?
A.
B.
C.
D.
E.
F.
G.
39.  Atoms are mostly made up of empty space.
A.
B.
40.  Mass is the downward force of an object due to gravity.
A.
B.
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