Question 1

Which of these animals is a reptile?

Accepted Answer

an alligator

Answer

a carp

Answer

an ostrich

Answer

a salamander

Question 2

How are all insects alike?

Accepted Answer

they have three body parts

Answer

they have two pairs of wings

Answer

they have four pairs of legs

Answer

they can fly

Question 3

What is something that all animals can do?

Accepted Answer

produce young

Answer

protect their territory

Answer

move about on land

Answer

hunt for food

Question 4

Scientists classify animals into two large groups based on whether the animals

Accepted Answer

have a backbone

Answer

can move about

Answer

eat other animals

Answer

have more than one body part

Question 5

Young animals learn many behaviors by

Accepted Answer

watching their mothers

Answer

relying on reflexes

Answer

practicing different behaviors from friends

Answer

imitating littermates

Question 6

The bodies of most mammals are covered with

Accepted Answer

hair

Answer

gills

Answer

scales

Answer

down

Question 7

Where do amphibians begin their lives?

Accepted Answer

in the water

Answer

on the beach near the water

Answer

on the land or in the water

Answer

on land

Question 8

The states of matter are

Accepted Answer

solid, liquid, and gas

Answer

volume, shape, and color

Answer

shape, size, and weight

Answer

freezing, boiling, and warm

Question 9

The amount of material that an object has in it is the

Accepted Answer

mass

Answer

shape

Answer

volume

Answer

property

Question 10

One hundred centimeters equal one

Accepted Answer

meter

Answer

kilometer

Answer

gram

Answer

millimeter

Question 11

A chemical change always results in a

Accepted Answer

different kind of matter

Answer

change in size

Answer

loss of matter

Answer

decrease in temperature

Question 12

The amount of mass contained in a given volume is

Accepted Answer

density

Answer

weight

Answer

height

Answer

matter

Question 13

Matter is anything that has mass and

Accepted Answer

takes up space

Answer

is not broken

Answer

holds water or air

Answer

is alive

Question 14

Which of these is a physical change?

Accepted Answer

cutting paper into tiny pieces

Answer

burning wood into charcoal

Answer

leaving a bicycle outside to rust

Answer

lighting a fire in a woodstove

Question 15

Your weight is a measure of the force of

Accepted Answer

gravity

Answer

friction

Answer

kinetic energy

Answer

inertia

Question 16

The breaks on In-line skates work because of

Accepted Answer

friction

Answer

inertia

Answer

kinetic energy

Answer

potential energy

Question 17

To a scientist, energy means the

Accepted Answer

ability to do work

Answer

food you eat

Answer

use of gasoline and oil

Answer

use of machines

Question 18

The energy of an object in motion is called

Accepted Answer

kinetic energy

Answer

potential energy

Answer

friction

Answer

gravity

Question 19

A compound machine is something that contains

Accepted Answer

more than one simple machine

Answer

ropes and pulleys

Answer

more than one wheel

Answer

an electrical socket or battery

Question 20

Electric current is the flow of

Accepted Answer

negative charges through matter

Answer

magnetism through matter

Answer

positive charges through matter

Answer

energy and light through matter

Question 21

Electric current passes easily through a

Accepted Answer

conductor

Answer

insulator

Answer

resistor

Answer

switch

Question 22

When two objects have different electric changes they

Accepted Answer

pull towards each other

Answer

push away from each other

Answer

lose matter

Answer

gain energy

Question 23

Every time you turn on a light, you

Accepted Answer

close an open circuit

Answer

open a closed circuit

Answer

add a source of power to a circuit

Answer

remove a source of power from a circuit

Question 24

A magnet is anything that

Accepted Answer

can pull iron or steel towards it

Answer

have positive and negative

Answer

can create electricity

Answer

is present in the earth's crust

Question 25

What is the color of sunlight?

Accepted Answer

white

Answer

black

Answer

blue

Answer

yellow

Question 26

The lenses inside your eyes are

Accepted Answer

concave

Answer

asymmetrical

Answer

opaque

Answer

convex

Question 27

The only kind of energy waves you can see are

Accepted Answer

light waves

Answer

microwaves

Answer

radio waves

Answer

X rays

Question 28

Light bends when it

Accepted Answer

moves from one material into another

Answer

changes from one color to another

Answer

changes wavelengths

Answer

becomes absorbed

Question 29

In what way are all sounds alike?

Accepted Answer

All are caused by vibrations

Answer

All travel through empty space

Answer

All can be heard by humans

Answer

All are pleasant to hear

Question 30

A red flower is red because it

Accepted Answer

absorbs every color of light except red light

Answer

is translucent

Answer

is opaque

Answer

reflects every color except red light

Question 31

An amplifier makes sounds louder.

Accepted Answer

True

Answer

False

Question 32

The light energy that we can see is called th4e visible spectrum.

Accepted Answer

True

Answer

False

Question 33

Wavelength is the distance between the top point of a wave and the bottom point of the same wave.

Accepted Answer

False

Answer

True

Question 34

Volume describes how loud or soft a sound is.

Accepted Answer

True

Answer

False

Question 35

The continental shelf and ocean basin are ocean floor features.

Accepted Answer

True

Answer

False

Question 36

Some of the surfaces on Earth het hotter than others because they absorb more sunlight.

Accepted Answer

True

Answer

False

Question 37

After the new moon, we see the full moon.

Accepted Answer

False

Answer

True

Question 38

All landforms on the Earth have a specific shape.

Accepted Answer

True

Answer

False

Question 39

The sun's energy heats the air on the Earth at the same time.

Accepted Answer

False

Answer

True

Question 40

The Gulf Stream heats the western Pacific.

Accepted Answer

False

Answer

True

Question 41

Comets obit around the sun.

Accepted Answer

True

Answer

False

Question 42

Natural gas and petroleum are formed from dead plants.

Accepted Answer

False

Answer

True

Question 43

A dry seed in a packet.

Accepted Answer

dormant

Answer

pollination

Answer

producer

Answer

hibernation

Question 44

A plant uses light energy to make sugar.

Accepted Answer

photosynthesis

Answer

pollination

Answer

consumer

Answer

producer

Question 45

Get energy from eating prey

Accepted Answer

carnivore

Answer

omnivore

Answer

herbivore

Answer

scavenger

Question 46

A vulture eats animals that are already dead.

Accepted Answer

scavenger

Answer

omnivore

Answer

symbiosis

Answer

herbivore

Question 47

A fern produces a new fern.

Accepted Answer

spore

Answer

leaf

Answer

roots

Answer

pollination

Question 48

A green material in leaves that traps light energy.

Accepted Answer

chlorophyll

Answer

spore

Answer

chloroplast

Answer

photosynthesis

Question 49

A fruit grows from

Accepted Answer

an ovary

Answer

a stamen

Answer

a sepal

Answer

a seed

Question 50

Hibernation is a kind of adaptation because it helps an animal

Accepted Answer

survive a cold winter

Answer

take care of its young

Answer

hide in its surroundings

Answer

live as part of a group

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