2nd grade Science Review

Revision

Touch consists of several distinct sensations communicated to the brain through specialized neurons in the skin. Pressure, temperature, light touch, vibration, pain and other sensations are all part of the touch sense and are all attributed to different receptors in the skin.

What happened to the boy?

Multiple Choice

The sense of ............... is used in this picture

• Hearing

• Smell

• Touch

• Sight

Multiple Choice

The food in the picture has a ................ taste

• Sweet

• Salty

• Sour

• Bitter

Multiple Choice

The food in the picture has a .......... taste

• Sweet

• Salty

• Bitter

• Sour

Multiple Choice

The picture shows .......................... smell

• Pleasant

• Unpleasant

Multiple Choice

Which sense did the deaf people use?

• Hearing

• Sight

• Taste

• Smell

Multiple Choice

Which sense did the blind people lose?

• Taste

• Smell

• Sight

• Hearing

Multiple Choice

What is the function of the tongue?

• Touching

• Smelling

• Tasting

• Hearing

Multiple Choice

Which sense is used in this picture?

• Touch

• Smell

• Sight

• Taste

Multiple Choice

To observe long and short ropes, we use the sense of ..........

• Hearing

• Touch

• Sight

• Smell

Multiple Choice

Which organ do we use to smell?

• Eyes

• Nose

• Tongue

• Ears

Multiple Choice

Which organ do we use to see?

• Eyes

• Ears

• Tongue

Multiple Choice

The parts of the nervous system are: the brain and nerves.

• true

• false

Multiple Choice

The sense of .............. is related with the skin.

• sight

• smell

• touch

• hearing

• taste

Multiple Choice

The sense of .............. is related with the eyes.

• sight

• smell

• touch

• hearing

• taste

Multiple Select

What is the organ for the sense of "TOUCH"?

• Nose

• Hair

• Smell

• Skin

Multiple Select

This is a stuffed elephant.

Tick all characteristics that apply.

• Fluffy

• Soft

• Hot

• Wet

Multiple Select

This is a piece of wood.

Tick all characteristics that apply.

• Rough

• Hard

• Fluffy

• Dry

Multiple Choice

Playing with water

• Dry

• Wet

Multiple Choice

• Hot

• Cold

Multiple Choice

• Hot

• Cold

Multiple Choice

Sandpaper

• Smooth

• Rough

Multiple Choice

Tomato

• Smooth

• Rough

Multiple Choice

Wood

• Fluffy

• Firm

Multiple Choice

Golf Ball

• Hard

• Soft

Multiple Choice

Glue

• Sticky

• Loose

Multiple Choice

Marshmellow

• Hard

• Fluffy

Multiple Choice

Cotton Candy

• Soft

• Hard

Hearing and making sounds 

Sound is a kind of energy you hear.

Sound is made when something vibrates ,

or moves back and forth. When you

snap a string, it vibrates. The air around

it vibrates, too. The vibrating air goes

to your ear. A part of your ear called

the eardrum vibrates, and then you

hear the sound.

Multiple Choice

When a person plucks a

guitar string, it ............

• changes

• moves

• explodes

• vibrates

Multiple Choice

When your..............vibrates, you hear the sound!

• eardrum

• ear

• sound

• head

Multiple Choice

When you speak, air...........

from your lungs to your throat.

• listens

• moves

• appears

Multiple Choice

The air moves over your vocal cords and causes the vocal cords to........

• vibrate

• sore

• move

• speak

Multiple Choice

When you blow air through a flute, it vibrates and makes a .........

• voice

• music

• sound

• noise

Fill in the Blank

When a sound is loud, the vibrations are big. When a sound is soft, the vibrations are ..........

Multiple Choice

......................describes the loudness of a sound.

• speaker

• louder speaker

• volume

• noise

Multiple Choice

A lion’s ......... can be so loud that you can hear it up to 6 miles away!

• shout

• roar

• yell

• speak

Multiple Choice

What happens when you move far away from a sound?

• The sound is smaller

• The sound is bigger

Multiple Choice

Sounds can be high, low, or in between. ..........describes how high or low a sound is.

• level

• volume

• pitch

• speed

Multiple Choice

When a sound is low,

the vibrations are ..........

• slow

• low

• soft

• quiet

Multiple Choice

When you hit a ........... bar, the pitch is high. When you hit a big bar, the pitch is low.

• small

• big

• high

• tiny

Multiple Choice

When a sound has a high pitch, the vibrations are........

• slow

• fast

Multiple Choice

The faster the vibrations, the.......the pitch. A whistle makes faster vibrations than a bullfrog’s croak.

• smaller

• higher

Multiple Choice

What kind of vibrations do you think a bird’s

chirp makes?

• fast

• slow

Multiple Choice

The cat’s meow and a child’s voice have.......pitch

• low

• high

Multiple Choice

Which dog’s bark has a higher pitch?

Fill in the Blank

Miss Lee sells four different drums in her

store. The first drum is 10 centimeters wide.

The second drum is 20 centimeters wide.

The third drum is 30 Follow the Pattern

How wide is the fourth drum?

Follow this number pattern:

10 + 10 = 20

20 + 10 = 30

30 + a = b

Miss Lee knows that the smallest drum has the highest pitch. Which centimeters of width does the last drum have?

Multiple Select

Which drum has the lowest pitch?

• 1

• 2

• 3

• 4