Review Game Zone
Flash Cards
(current)
Games
Teachers
Search
8th Grade Science TCAP Review
Test Description: Review for TCAPS!
Instructions: Answer all questions to get your test result.
1) Which objects could be combined to make a device that would produce electricity?
A
a magnet and a coil of copper wire
B
a magnifying lens and a source of light
C
a graduated cylinder and a gram scale
D
a block of ice and a dark metal box
2) Charity was measuring a sample of copper to determine its density. The sample had a mass of 27 grams and a volume of 3 cubic centimeters.What is the density of copper?
A
9 grams per cubic centimeter
B
12 grams per cubic centimeter
C
3 grams per cubic centimeter
D
6 grams per cubic centimeter
3) Which animal species are most likely to survive in a marine environment that has very cold water temperatures?
A
animals that have a thick layer of fat beneath their skin
B
animals that have colorful markings on their skin
C
animals that use sound to navigate
D
animals that live together in social groups
4) Which of these represents a chemical change?
A
water vapor rising in the air
B
salt forming after mixing two liquids
C
rocks cracking due to freeze and thaw
D
sugar dissolving in water
5) What are carbon, hydrogen, and oxygen?
A
bases
B
atoms
C
acids
D
cells
6) Which sentence describes a way that Earth's biodiversity helps human health?
A
Many medicines are derived from plants and animals and more are being discovered as new species are found.
B
Many species transmit disease organisms and this helps humans develop resistance to many kinds of illness.
C
Many scientists study species in the wild and more species mean more discoveries for the scientists.
D
Many species participate in the water cycle and clean water as it moves through the ocean and atmosphere.
7) Carrie tests the stream behind her house each year to find out if the water quality has changed. This year, the water in the stream had a pH of 6.0 according to the pH meter. What describes the pH of the water in the stream?
A
slightly basic
B
slightly acidic
C
strongly acidic
D
strongly basic
8) Hernando ran an electric current through a beaker of distilled water and separated the water into the gases H2 and O2. What type of change did he produce?
A
chemical change
B
physical change
C
periodic change
D
social change
9) On the periodic table, chromium has the symbol Cr, an atomic number of 24, and a mass number of 52. How many protons does chromium have?
A
52
B
76
C
24
D
28
10) Which of the following does not represent a mixture?
A
NaCl + H2O
B
N2 + O2
C
Fe2O3
D
SiO2 + C6H12O6
11) Which of the following would not be used to construct an electromagnet?
A
a directional compass
B
a size D battery
C
a steel nail
D
a coil of copper wire
12) In what state of matter are the molecules far apart and constantly moving at high speeds?
A
solid
B
liquid
C
matter
D
gas
13) The planets in our solar system stay in their orbits because of the __________.
A
force of magnetism on their iron cores
B
energy from the Sun that brings warmth
C
energy that makes up the Van Allen belts
D
force of gravity on their masses
14) The chemical reaction below describes the combustion of ethanol. C2H5OH + 3O2 → 2CO2 + 3H2O What are the products of the reaction?
A
C2H5OH and 3O2
B
3O2 and 3H2O
C
C2H5OH and 2CO2
D
2CO2 and 3H2O
15) Earth's atmosphere is made up of several gases. Which gas makes up over 75% of Earth's atmosphere?
A
hydrogen
B
helium
C
nitrogen
D
carbon dioxide
16) Why does Earth have a greater gravitational pull than the Moon?
A
The Moon is farther from the Sun.
B
Earth has magnetic poles.
C
Earth has more mass than the Moon.
D
The Moon orbits Earth.
17) Several exploration vehicles have landed on Mars and have sent information back to scientists on Earth. Which characteristic changed after the vehicles landed on Mars?
A
The vehicles weighed much less on Mars.
B
The vehicles were much warmer on Mars.
C
The vehicles had much less mass on Mars.
D
The vehicles were much longer on Mars.
18) Which statement describes a difference between a bar magnet and an electromagnet?
A
A bar magnet has a permanent magnetic field, while an electromagnet has a temporary magnetic field.
B
A bar magnet has a very strong magnetic field, while an electromagnet has no magnetic field.
C
A bar magnet has no magnetic field, while an electromagnet has a very strong magnetic field.
D
A bar magnet has a temporary magnetic field, while an electromagnet has a permanent magnetic field.
19) Molecules consist of two or more __________.
A
atoms
B
protons
C
neutrons
D
electrons
20) What is the result of all chemical changes?
A
A new substance is formed.
B
An element loses electrons.
C
A substance goes through a phase change.
D
A new element is formed.
*select an answer for all questions
Check Results & Get Answers
Play Games with the Questions Above
Teachers: Create FREE classroom games with your questions
Click for more info!
©2007-2024
ReviewGameZone.com
|
About
|
Privacy
|
Contact
|
Terms
|
Site Map
WAIT! Find what you needed?
×
Still Looking for the Answers?
Have Another Question?
Play a Review Game with These Questions?
Want to Make Your Own Test Like This One?