NEW
Font size
S
M
L
XL
Worksheets6th/7th grade Science Review CSA 2
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
Cardy B wants to know if the type of light affects the growth of plants. What is the independent variable?
a)
type of light
b)
plant growth
2.
Cardy B wants to know if the type of light affects the growth of plants. What is the dependent variable?
a)
type of light
b)
plant growth
3.
Mrs. Goodwyn wants to test the hypothesis "If I add salt to water then it will boil faster." What is the Independent Variable?
a)
Amount of salt added
b)
Temperature at which water boils
4.
Mrs. Goodwyn wants to test the hypothesis "If I add salt to water then it will boil faster." What is the Dependent Variable?
a)
Amount of salt added
b)
Temperature at which water boils
5.
Why is water called the "universal solvent"?
a)
Everything in the universe will dissolve in water.
b)
Water completely dissolves almost any material.
c)
A large number of substances will dissolve in water.
d)
If you had enough water, you could dissolve the entire universe.
6.
Which of the following pictures in the background depicts a water molecule?
a)
F
b)
G
c)
H
d)
J
7.
Liquid water has a temperature range of--
a)
320C - 1000C
b)
liquid water has no temperature limits
c)
00C - 100oC
d)
320C - 2120C
8.
Which of the following counties would most likely have the mildest winters? (hint: large bodies of water release heat during the winter, so areas closer to water will have milder winters than those inland)
a)
A
b)
B
c)
C
d)
D
9.
Which would have the most mass, 100 mL of water or 100 mL of ice?
a)
They would have the same mass
b)
Water
c)
It would depend on the container
d)
Ice
10.
Why does the lettering on tombstones made out of limestone or marble tend to wear away faster than those from other rocks?
a)
Marble and limestone are harder minerals.
b)
Marble and limestone are affected more by acid rain.
c)
Marble and limestone are worn away by wind.
d)
Marble and limestone are crumbly rocks.
11.
What characteristics about water causes rocks to break apart in the winter?
a)
Water expands as it freezes.
b)
Water is the universal solvent
c)
It snows more in the winter
d)
One side of the water molecule is negative and the other side is positive.
12.
Prophase, metaphase, anaphase, and telophase are stages in --
a)
Cytokinesis
b)
a Broadway production
c)
Interphase
d)
Mitosis
13.
What stage of the cell cycle as just finished?
a)
Cytokinesis (telophase)
b)
Metaphase
c)
Anaphase
d)
Prophase
14.
Interphase is --
a)
The longest stage in the cell cycle.
b)
When the cell absorbs water.
c)
The process in which the cell divides.
d)
The 3rd stage in mitosis.
15.
Prophase, metaphase, anaphase, and telophase are stages in--
a)
Mitosis
b)
Meiosis
16.
What process is taking place in the cell pictured?
a)
Mitosis
b)
Meiosis
17.
Which of the following BEST represents a molecule of DNA?
a)
A
b)
B
c)
C
d)
D
18.
What part of the DNA molecules forms a chemical (genetic) code?
a)
sugars
b)
phosphates
c)
nitrogen bases
d)
oxygen
19.
How many chromosomes does a human body cell have?
a)
26
b)
36
c)
46
d)
56
20.
Which of the following genotypes are heterozygous?
a)
Bb, Dd, Mm
b)
AA, HH
c)
tt
d)
Bb, HH
21.
What is the function of the DNA molecule?
a)
Regulate chemical reactions in a cell
b)
Provide cell energy
c)
Store genetic information
d)
Store cell energy
22.
Which of the following genotypes are homozygous dominant?
a)
TT, aa
b)
Tt, TT
c)
TT, AA
d)
Bb, bb
23.
In gerbils, black fur is recessive to brown (agouti pattern) fur. Choose the possible genotypes for brown "agouti pattern" gerbil.
a)
BB
b)
bb
c)
Bb, BB
d)
Bb
24.
When Charles Darwin visited the Galapagos Islands, he noticed that each island had it's own species of finch. Based on the different types of beaks, which best explain the variety of finches in the Galapagos?
a)
Each island has different food
b)
All islands have the same food
c)
Each island has similar climates
d)
The islands are exactly main land
25.
Which fossils pictured would provide evidence that the environment was aquatic during the time of the animals' lives?
a)
A only
b)
A & B
c)
C only
d)
C & D
Reset
