Grade 4: Science Review

A force that pulls two objects together is _____.
1. gravity
2. inertia
3. friction
4. speed
Stored energy is called _____.
1. potential energy
2. kinetic energy
3. friction
4. inertia
A machine with many moving parts that usually has low efficiency is a _____.
1. complex machine
2. pulley
3. simple machine
4. wheel and axle
Energy that results from chemical changes is _____.
1. chemical energy
2. mechanical energy
3. kinetic energy
4. friction
A ball moving down a hill has _____.
1. kinetic energy
2. chemical energy
3. no energy
4. work energy
Any tool that makes work easier to do is called a _____.
1. machine
2. lever
3. computer
4. motor
The energy an object gets from its motion is _____.
1. mechanical energy
2. potential energy
3. electrical energy
4. chemical energy
The tendency of a moving object to stay in motion is called _____.
1. inertia
2. friction
3. force
4. gravity
The amount of work a machine does compared to the amount of energy put into using it is called _____.
1. efficiency
2. potential
3. friction
4. inertia
What is a machine called that has only one or two moving parts?
1. simple
2. compound
3. complex
4. not efficient
What type of energy is carried by electrons and protons and is capable of driving motors and producing heat and light?
1. electrical energy
2. potential energy
3. mechanical energy
4. work energy
When a moving object rubs against something, its motion slows down because of a force called _____.
1. friction
2. gravity
3. inertia
4. speed
What unit measures the force that makes electrons move in an electric current?
1. volt
2. neutron
3. atom
4. proton
A small magnet that turns freely and always points north is a _____.
1. compass
2. generator
3. pole
4. electromagnet
Rubber, glass, and plastic are good _____.-
1. insulators
2. electromagnets
3. generators
4. conductors
A magnetic field is the _____.
1. area around a magnet where the force acts
2. area near a magnet where there is no force
3. effect of magnets on an object
4. group of objects that a magnet affects
What kind of circuit allows a current to flow through it?
1. closed
2. open
3. electron
4. magnetic
Which poles of two magnets will be attracted toward each other?
1. north and south
2. south and south
3. north and north
4. middle and north
A circuit that allows one light bulb to remain lit while another connected bulb stays off is _____.
1. a parallel circuit
2. a series circuit
3. an open circuit
4. a magnetic field
The movement of pollen from a stamen to a pistil is _____.
1. pollination
2. migration
3. germination
4. dormant
When a seed is in a resting state, it is _____.
1. dormant
2. sprouting
3. a spore
4. growing
What are the colorful parts of flowers that protect the flower parts where seeds are made?
1. petals
2. sepals
3. stamens
4. pistils
A leaflike part that protects a flower bud and is usually green is the _____.
1. sepal
2. petal
3. stamen
4. pistil
The two parts of a flower needed to make a seed are the _____.
1. stamen and pistil
2. pistil and petals
3. pollen and bees
4. stem and eggs
Mosses reproduce by forming _____.
1. spores
2. sepals
3. flowers
4. seeds
The tiny part of a seed that can grow into a plant is the _____.
1. embryo
2. pistil
3. fruit
4. spore
The green substance produced by plant leaves is _____.
1. chlorophyll
2. oxygen
3. phosphate
4. nitrate
Plants use sunlight to make sugars in the process of _____.
1. photosynthesis
2. reproduction
3. fertilization
4. oxidation
The flow of energy and materials through food chains that are connected form a _____.
1. food web
2. food cycle
3. food source
4. food order
A gas that plants need to make sugar is _____.
1. carbon dioxide
2. oxygen
3. nitrogen
4. carbon monoxide
The path of energy and materials in a community is a _____.
1. food chain
2. food cycle
3. food source
4. food order
Adding harmful substances to a community is called _____.
1. pollution
2. decomposition
3. photosynthesis
4. conservation
A tool that shows wind direction is a _____.
1. wind vane
2. thermometer
3. barometer
4. hygrometer
When the layer of air that surrounds the Earth presses down, this is _____.
1. air pressure
2. heat
3. temperature
4. precipitation
A rain gauge measures _____.
1. precipitation
2. humidity
3. temperature
4. air pressure
An area where cool air sinks and pushes down on the Earth's surface with more pressure is a _____.
1. high pressure area
2. low pressure area
3. air mass
4. medium pressure area
The line where two air masses meet is called a/an _____.
1. front
2. air cycle
3. air mass
4. low pressure area
A barometer measures _____.
1. air pressure
2. temperature
3. precipication
4. wind speed
Clouds that look like cotton puffs are _____.
1. cumulus
2. cirrus
3. nimbostratus
4. stratus
Meteorologists measure humidity with a/an _____.
1. hygrometer
2. barometer
3. thermometer
4. anemometer
White, feathery clouds that are so high up in the air that they are made of tiny pieces of ice are _____.
1. cirrus
2. cumulus
3. stratus
4. nimbostratus
Meteorologists measure wind speed with a/an _____.
1. anemometer
2. wind vane
3. thermometer
4. barometer
The time it takes for a planet to rotate on its axis is one _____.
1. day
2. year
3. season
4. month
The seasons are caused by the Earth's tilt and its _____.
1. revolution around the sun
2. revolution areound the moon
3. rotation
4. oceans
The time it takes the Earth to orbit the sun is one _____.
1. year
2. day
3. season
4. month
How long does it take for the moon to complete one revolution around the Earth?
1. 29 1/3 days
2. 365 days
3. one day
4. one week
The phase of the moon when the dark side faces the Earth is _____.
1. a new moon
2. a full moon
3. a crescent moon
4. a gibbous moon
What is the most important minderal resource found in Virginia?
1. coal
2. granite
3. lime
4. slate
More than half of Virginia is covered with _____.
1. forests
2. beaches and lakes
3. farms
4. swamps
The Chesapeake Bay is famous for its _____.
1. crabs
2. minerals
3. algae
4. coral reefs

Grade 4: Science Review

Multiple-Choice ExerciseContent © 2003 Tami Maloney; Author of Activity: Tami Maloney; All rights reserved. No commercial, for-profit use of this material is allowed. E-mail comments and questions to Tami Maloney.

A force that pulls two objects together is _____.

Stored energy is called _____.

A machine with many moving parts that usually has low efficiency is a _____.

Energy that results from chemical changes is _____.

A ball moving down a hill has _____.

Any tool that makes work easier to do is called a _____.

The energy an object gets from its motion is _____.

The tendency of a moving object to stay in motion is called _____.

The amount of work a machine does compared to the amount of energy put into using it is called _____.

What is a machine called that has only one or two moving parts?

What type of energy is carried by electrons and protons and is capable of driving motors and producing heat and light?

When a moving object rubs against something, its motion slows down because of a force called _____.

What unit measures the force that makes electrons move in an electric current?

A small magnet that turns freely and always points north is a _____.

Rubber, glass, and plastic are good _____.-

A magnetic field is the _____.

What kind of circuit allows a current to flow through it?

Which poles of two magnets will be attracted toward each other?

A circuit that allows one light bulb to remain lit while another connected bulb stays off is _____.

The movement of pollen from a stamen to a pistil is _____.

When a seed is in a resting state, it is _____.

What are the colorful parts of flowers that protect the flower parts where seeds are made?

A leaflike part that protects a flower bud and is usually green is the _____.

The two parts of a flower needed to make a seed are the _____.

Mosses reproduce by forming _____.

The tiny part of a seed that can grow into a plant is the _____.

The green substance produced by plant leaves is _____.

Plants use sunlight to make sugars in the process of _____.

The flow of energy and materials through food chains that are connected form a _____.

A gas that plants need to make sugar is _____.

The path of energy and materials in a community is a _____.

Adding harmful substances to a community is called _____.

A tool that shows wind direction is a _____.

When the layer of air that surrounds the Earth presses down, this is _____.

A rain gauge measures _____.

An area where cool air sinks and pushes down on the Earth's surface with more pressure is a _____.

The line where two air masses meet is called a/an _____.

A barometer measures _____.

Clouds that look like cotton puffs are _____.

Meteorologists measure humidity with a/an _____.

White, feathery clouds that are so high up in the air that they are made of tiny pieces of ice are _____.

Meteorologists measure wind speed with a/an _____.

The time it takes for a planet to rotate on its axis is one _____.

The seasons are caused by the Earth's tilt and its _____.

The time it takes the Earth to orbit the sun is one _____.

How long does it take for the moon to complete one revolution around the Earth?

The phase of the moon when the dark side faces the Earth is _____.

What is the most important minderal resource found in Virginia?

More than half of Virginia is covered with _____.

The Chesapeake Bay is famous for its _____.

Multiple-Choice Exercise
Content © 2003 Tami Maloney; Author of Activity: Tami Maloney; All rights reserved. No commercial, for-profit use of this material is allowed. E-mail comments and questions to Tami Maloney.