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WorksheetsLesson 14 Reading One— How Do Odor Molecules Move?
Total questions: 38
Worksheet time: 20mins
Lesson 14 Reading One— How Do ____________ Molecules Move?
Light
Odor
Life
Living
Fish smell odor molecules in the ______________, and people smell odor molecules in the air.
air
water
light waves
sound waves
Sharks find their food in the water by detecting _____________.
salt water
blood
fresh water
ammonia
Liquids expand when heated because the molecules move farther apart from each other at higher temperatures.
true
false
The investigations in class and this reading will help you learn how molecules can move in water so that fish can smell _____________.
sweaters
odors
bells
pencils
Some people use a bulb thermometer at home. This type of thermometer can measure body temperature when someone is ______________.
singing
sick
smelling
purple
When the air is warm, the liquid in the thermometer rises up the tube. When the air is cold, the _____________ falls down the tube.
solid
liquid
gas
plasma
Bulb thermometers work because the liquid in the thermometer takes up more space as the temperature of the room increases.
true
false
The volume will increase when you heat water.
true
false
The reason water changes volume is because the molecules that make up _______________ move faster or slower.
air
water
The volume of hot and cold water changes for two reasons:
1. The speed of the molecules is different in hot and cold water.
and
2. The space between the molecules is not different in hot and cold water.
2. The space between the molecules is different in hot and cold water.
When the thermometer measures 60°F/15.5°C, the molecules are moving at a certain speed. When you cool the liquid, the molecules move at a _______________ speed.
faster
slower
quicker
As a gas cools, the particles move more _____________.
quickly
slowly
As a gas cools, the particles move more slowly. When the particles move more slowly, they do not bounce off each other as hard, and the ______________ shrinks.
soup
balloon
green beans
dry ice
An increase in ______________ tells me the molecules in a liquid are moving faster. This is the same for a gas— the higher the temperature, the faster the gas molecules are
moving.
pressure
temperature
powder
gas
What do we know about liquids so far?
They are made up of molecules and constantly moving
some of the surface molecules evaporate at all temperatures, but all molecules boil/freeze at a specific temperature, which indicates the phase change.
moving faster at higher temperatures
liquids expand when heated, which means they move more and collide harder and more often
all of these
When a substance is heated, the molecules that make up the substance move faster.
true
false
The faster movement of the molecules results in higher temperatures.
true
false
How does this activity connect to what we have learned about using our models to predict?
Physical models, like two- dimensional models, can be used to predict.
What is a prediction?
Temperature is a measure of the average kinetic energy of particles of ________________.
mass
matter
In a liquid, the molecules are constantly in contact with others; in a gas, they are widely spaced except when they happen to _______________.
group
collide
space
In a _____________, atoms are closely spaced and may
vibrate in position but do not change relative locations.
solid
liquid
gas
plasma
What is the definition of sublimation?
a chemical process where a solid turns into a gas without going through a liquid stage
the process of a liquid changing into a gas
What is an example of sublimation?
Ice cream melting
Dry ice
When the temperature of matter increases the particles...
speed up and move closer
speed up and move farther apart
slow down and move closer together
slow down and move farther apart
No Definite Shape and No Definite Volume
Gas
Liquid
Solid
No definite shape, but has a definite volume
Gas
Liquid
Solid
Phase change from a solid to a gas.
sublimation
deposition
condensation
evaporation
Phase change from a solid to a liquid.
melting
sublimation
boiling
condensation
Phase change from a liquid to a gas that only happens at the surface.
evaporation
boiling
sublimation
melting
When the temperature of matter increases the particles...
speed up and move closer
speed up and move farther apart
slow down and move closer together
slow down and move farther apart
When the temperature of matter decreases the particles ...
speed up and move farther apart
speed up and move closer together
slow down and move farther apart
slow down and move closer together
Phase change from a gas to a liquid.
condensation
evaporation
melting
deposition
The opposite phase of melting is
freezing
sublimation
condensation
deposition
5. What is it called when a solid turns directly into a gas?
Sublimation
Condensation
Liquid
