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