Science Study Guide Quiz 1
Complete this metric conversion. 1 cm = ? m
0.01
Complete this metric conversion. 250 mm = ? m
0.25
Complete this metric conversion. 1 mL = ? cm3
1
Complete this metric conversion. 1,000 g = ? kg
1
What is the density of water? A. 1 g/cm3 B. 1 g/L C. 10 g/L D. 10 Kg/L
1 g/cm3
Match these items. 1. bonding: found in molecules 2. molecule: keeps molecules together 3. cubic centimeter: small unit of matter 4. electrolysis: unit of measure 5. graduated cylinder: breaks down water using electricity 6. electroplating: measures amount of water 7. atom: practical use of electrolysis
1. bonding: keeps molecules together 2. molecule: small unit of matter 3. cubic centimeter: unit of measure 4. electrolysis: breaks down water using electricity 5. graduated cylinder: measures amount of water 6. electroplating: practical use of electrolysis 7. atom: found in molecules
Match the terms. 1. prospective: the power of springing back: buoyancy, cheerfulness. 2. resiliency: to search into; examine closely. 3. investigate: knowledge; skill, expertness. 4. proficiency: power to change easily to fit different conditions 5. adaptability: to try to find out; make trials, tests 6. experiment: looking forward; looking to the future.
1. prospective: looking forward; looking to the future. 2. resiliency: the power of springing back; buoyancy, cheerfulness. 3. investigate: to search into; examine closely. 4. proficiency: knowledge; skill, expertness. 5. adaptability: power to change easily to fit different conditions 6. experiment: to try to find out; make trials, tests
Complete this metric conversion. 1,500 cm3 = ? L
1.5
Complete this metric conversion. 0.01 kilometers = ? m
10
Complete this metric conversion. 10,500 m = ? km
10.5
How many elements are known? 1. 98 2. 118 3. thousands 4. more then 5 million
118
In the formula CaCO3 are _ atom(s) of oxygen, _ atom(s) of calcium, and _ atom(s) of carbon.
3, 1, 1
What is the density of an 800 gram object that occupies 200 cm3? A. 400 g/L B. 2.5 ml/g C. 40 g/L D. 4 g/cm3
4 g/cm3
Complete this metric conversion. 7.5 m = ? cm
750
The Nobel Prize was won by _________ for finding that electrons in the atom stay in specific _________.
Bohr and orbits
The orderly arrangement of everything in the universe, from atoms to galaxies, provides evidence in favor of _____. 1. accidental arrangement of matter 2. evolution 3. Creation 4. intelligent design 5. big bang theory
Creation and intelligent design
Density is not a physical property of mass. True or False
False
The temperature of boiling water in a open container will rise as more heat is applied. True or False
False
When chemical change takes place, the total number of atoms changes. True or False
False
Two major countries which have not yet fully converted to the metric system are _____ and _____. 1. France 2. Great Britain 3. Mexico 4. Russia 5. Australia 6. USA
Great Britain and USA
Every base has a(n) _______ ion.
OH
Study this. Length: 1,000 meters= 1 kilometer (km) (meter=m) 0.01 meter= 1 centimeter (cm) 0.001 meter = 1 millimeter Time: 60 seconds= 1 minute (second) 0.01 second= 1 millisecond (Multiples of seconds are not based on the number 10) Mass: 1,000 grams= 1 kilogram (kg) (gram) 0.001 gram= 1 milligram (mg) Volume: liter(L) 0.001 liter= 1 milliliter (mL) 1 cm3= 1 milliliter (mL)
OKAY
The first model of an atom was proposed by __________ in 1911.
Rutherford
Al(OH)2 is _____. 1. an acid 2. a base 3. a salt
a base
Ca(OH)2 is _____. 1. an acid 2. a base 3. a salt
a base
NaOH is _____. 1. an acid 2. a base 3. a salt
a base
CuSO4 is _____. 1. an acid 2. a base 3. a salt
a salt
NaCl is _____. 1. an acid 2. a base 3. a salt
a salt
CH3COOH is _____. 1. an acid 2. a base 3. a salt
an acid
H2SO4 is _____. 1. an acid 2. a base 3. a salt
an acid
HCl is _____. 1. an acid 2. a base 3. a salt
an acid
Elements contain ________ of the same kind.
atoms
The water underneath the floating object exerts a push or force called _______ that holds it up.
buoyancy
The changing of water into hydrogen and oxygen gas is an example of a _______ change.
chemical
When new compounds are formed, what type of change has taken place? 1. physical 2. phase 3. form 4. chemical
chemical
Substances made of two or more chemically bonded elements are called __________.
compounds
Paper and cork float on water because they have low_______.
density
What is the equation for density? _______=______/_______
density = mass/volume
Some physical properties of matter include: 1. density 2. color 3. reactivity 4. luster 5. abundance 6. taste 7. source
density, color, luster, and taste
The process of splitting a molecule by passing an electric current through a solution of the substance is known as __________.
electrolysis
The process of electrolysis used to coat objects with metals is called __________ .
electroplating
Substances which are made of just one kind of atom are called __________.
elements
Phase changes are chemical changes. True or False
false
Sort in order the general steps of the scientific method. First: publish the results conduct the experiment interpret the findings literature research Last: form a hypothesis
form a hypothesis literature research conduct the experiment interpret the findings publish the results
Every acid has ______ atoms.
hydrogen
A common test for determining an acid or base uses ________.
litmus
Complete this metric conversion. 0.8 L = 800__
mL
Scientists must learn to work with the international _________ system of measurements.
metric
The atmosphere is a(n) _____. 1. element 2. molecule 3. mixture 4. compound
mixture
Substances made of two or more elements which are not chemically bonded are known as _________.
mixtures
The smallest unit of a substance consisting of two or more atoms is a ________.
molecule
The bond between molecules of a gas is _____. 1. none 2. weak 3. moderate 4. strong
none
The strength of acids or bases is measured by the __ scale.
pH
Recognizing differences through the senses means to _________.
perceive
The change from a liquid to a gas or solid to a liquid is an example of a change of ________.
phase
The changing of water into vapor (gas) is an example of a _________ change.
phase
A change of form is also called a(n) ________ change.
physical
All matter has a particular set of characteristics known as ________ properties.
physical
The change of size or shape of a substance is a _________ change.
physical
The expansion of matter upon heating is an example of a(n) __________ change.
physical
An acid combined with a base forms a(n) ____.
salt
Aristotle did not experiment to verify his ideas; therefore, he was not a _______ but a _________.
scientist and philosopher.
When matter is cooled, the internal motion of molecules becomes _______ and the space between molecules _________.
slower and decreases
New discoveries of positrons, mesons, neutrinos, and others are usually called _________ particles.
subatomic
Subscript numbers in a chemical formula indicate _____. 1. the number of atoms of each element 2. the relative number of molecules 3. the number of molecules in each element 4. the atomic number of each element.
the number of atoms of each element