WorksheetsCMS 6th Grade Recap
Total questions: 40
Worksheet time: 20mins
Name
Class
Date
1.
_____ can be used like a "history book" to help figure out past events by using the layers with fossils.
a)
Minerals
b)
Igneous Rock
c)
Sedimentary
d)
Metamorphic
2.
A compound is made of hydrogen ad oxygen. It's chemical formula is H2O. What does H2O mean?
a)
2 H electrons are bonded with 1 O electron
b)
2 O atoms are bonded to 1 H atom
c)
2 O electrons and 1 H electron
d)
2 H atoms are bonded to 1 O atom
3.
What happens to the density of an object if its volume increases?
a)
The density cannot be determined with info given
b)
The density remains the same
c)
The density increases
d)
T density decreases
4.
What happens when an ice cube is melted?
a)
The mass of the water in the ice cube is reduced
b)
Water is changed from Solid to liquid
c)
Hydrogen and Oxygen from the H2O molecule hold in the ice is released
d)
Evaporation and condensation create a chemical change
5.
What kind of energy is created by the turning blades of a windmill?
a)
Radiant
b)
Mechanical
c)
Nuclear
d)
Chemical
6.
Which statement is true about the mass and weight of an object?
a)
Mass can sometimes change while weight stays the same
b)
Both mass and weight can sometimes change
c)
Both mass and weight never change
d)
Weight can sometimes change while mass stays the same
7.
Which two scientists are associated with cells?
a)
Rudolf Virchow & Anton Leeuwenhoek
b)
Theodor Schwann & Rudolf Virchow
c)
Theordor & Schleden
d)
Robert Hooke & Anton von Leeuwenhoek
8.
Why are fossil fuels nonrenewable?
a)
They are not made by nature
b)
We use them faster than nature can replace them
c)
They can never be replaced
d)
People do not want to use them up
9.
Which layer of soil contains the most organic material?
a)
C horizon
b)
O horizon
c)
Parent Material
d)
Top Soil
10.
When rocks are forced deep within earth, the heat and pressure change their structure. Which type of rock results from this process?
a)
Metamorphic Rock
b)
Minerals
c)
Sedimentary Rock
d)
Igneous Rock
11.
Organs are made up of different tissues working together. An organ system is a group of organs that work together. Which is an organ apart of the digestive system?
a)
Blood
b)
Esophagus
c)
Organelle
d)
Muscle
12.
What is the tool used to find mass?
a)
Graduated Cylinder
b)
Balance
c)
Beaker
d)
Ruler
13.
How many independent variables should be tested at one time during an experiment?
a)
2
b)
Unlimited
c)
4
d)
1
14.
Plant and animal cells contain structures that perform specific functions. Which structure would you find in a plant cell, and in an animal cell?
a)
Nucleus
b)
Chloroplast
c)
Ribosome
d)
Cell membrane
15.
A cell membrane is important because ____ .
a)
it controls what comes in and out
b)
stores water, food and waste
c)
contains the cell organelles except for nucleus
d)
directs the operation of the cell
16.
What two factors determine how much an object weighs?
a)
Inertia and Size
b)
Gravity and Volume
c)
Mass and Inertia
d)
Mass and Gravity
17.
What is a disadvantage of sing geothermal energy to create electricity?
a)
Geothermal energy is not accessible from all locations
b)
Using geothermal energy creates air pollution
c)
Using geothermal energy causes radioactive waste
d)
Geothermal energy is nonrenewable
18.
Over millions of years, rocks are formed and change form. What process changes limestone into marble?
a)
Lava flow covers limestone and slowly cools
b)
Crystals in the limestone become melded together under pressure
c)
Dead plant material becomes deeply buried under shells and marine mud
d)
Weathering causes limestone to disintegrate
19.
Gneiss is a metamorphic rock characterized by alternating dark and light bands. What accounts for the different colored bands in gneiss?
a)
The bands represent weather patterns at Earth's surface where the gneiss was formed
b)
The bands separate sediments that have been deposited over time
c)
The bands develop because of heat and pressure
d)
The bands form when lava streams join and cool at different rates
20.
Minerals are made up of a ingle element or chemical compound. How are rocks different from minerals?
a)
Rocks are found on Earth's surface
b)
Rocks are minerals that have been broken up into small pieces
c)
Rocks are made up of several minerals
d)
Rocks are sedimentary; minerals are igneous
21.
The process of hot materials rising and cool materials sinking describes ____ .
a)
Convection Currents
b)
Specific Gravity
c)
Lithosphere
d)
Tectonic Plates
22.
Independent variables are ones that ___ .
a)
Are measured
b)
Are chosen by the experimenter
c)
Are never able to change throughout the experiment
d)
Are changed everyday in the experiment
23.
Before an object is placed into a beaker of water, the volume of H2O is 250mL. With the object inside, the volume is 325mL. What's the objects volume?
a)
250 mL
b)
575 mL
c)
100 mL
d)
75 mL
24.
Which properties are used to determine a mineral's identity?
a)
Volume and Hardness
b)
Size and Weight
c)
Odor and Shape
d)
Color and Streak
25.
Which of the following processes function as part of the rock cycle?
a)
Photosynthesis
b)
Weathering
c)
Mining
d)
Decay
26.
What is the rock cycle?
a)
A cycle that explains how certain Earth's resources are created
b)
A cycle that explains how certain gases are created
c)
A mode of transportation
d)
A system of movement within the Earth's interior
27.
Soil is made up of four main ingredients. Chose the correct list of ingredients.
a)
Tiny pieces of rock, air, water, and humus
b)
Air, water, tiny pieces of rock, and manure
c)
Humus, clay, water, and salts
d)
Tiny pieces of rock, humus, air, and sand
28.
Your car converts gasoline into the motion of the turning wheels so your car moves. What kind of energy conversion is this?
a)
Chemical to mechanical
b)
Mechanical to chemical
c)
Electromagnetic to mechanical
d)
Nuclear to mechanical
29.
What is one difference between plant and animal cells?
a)
Plant cells have a cytoskeleton that gives the cell structure instead of a cell wall.
b)
Animal cells have a cell wall for structure
c)
They have the exact same parts
d)
Only plant cells have a vacuole sac that stores water, food, and waste
30.
Which makes up organic material?
a)
Living and once-living things
b)
Fossils
c)
Iron and Copper
d)
Calcite
31.
What is a disadvantage of using hydro-power to create energy?
a)
Using it creates air pollution
b)
Its not accessible from same locations
c)
Using it creates radioactive waste
d)
It is nonrenewable
32.
You have the mass and volume of a rock. How do you find its density?
a)
D = M x V
b)
D / M = V
c)
D = M / V
d)
D = V / M
33.
What are controlled variables in an experiment?
a)
Variables that are the experimenters main focus
b)
Variables that stay the same throughout an experiment
c)
Variables that are measured
d)
Variables that are changed at the beginning
34.
Cork has a density of .24g/cc. Will cork float or sink in water and why?
a)
Cork will sink - b/c it is less that 1 g/cc
b)
Cork will float b/c it is less that 1 g/cc
c)
Cork will float b/c it is greater than 0 g/cc
d)
Cork will sink b/c it is greater than 0g/cc
35.
Which is a component of soil that is composed of organic matter?
a)
Subsoil
b)
Humus
c)
Soil Horizon
d)
Parent Material
36.
Astronauts have collected rocks on the surface of the moon and transported them back to Earth. What is different about moon rocks once they get to Earth?
a)
Their density changes depending on change in mass
b)
Their volume is greater than it was on the moon
c)
They weigh more than they did on the moon
d)
Their mass changes depending on the change in gravity
37.
Which of the following materials may be mined from the Earth?
a)
Corn
b)
Iron Ore
c)
Tomatoes
d)
Steel
38.
Air has a density of about .0012 g/cc. A balloon filled with helium floats in the air. What does this tell us about the density of helium?
a)
Its density is .0012 g/cc
b)
There is not enough info to make a statement
c)
Its density is more than .0012 g/cc
d)
Its density is less than .0012 g/cc
39.
Rocks contribute which of the following to soil?
a)
Humus
b)
Minerals
c)
Water
d)
Air
40.
The stomach is an organ made up of several types of tissue. For example, blood tissue and nerve tissue are found in the stomach. What is another type of tissue in the stomach?
a)
Intestine
b)
Mitochondria
c)
Organelles
d)
Muscle
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