PHOTOCOPIABLE

Worksheet
1
Name
Date
Reinforcement
Remember
The human body has three parts: the head, the trunk and the limbs.
We all have similar bodies, but there are differences: sexual
characteristics, build and individual characteristics.
1. Match the two columns.
eyebrows
2. Look and mark.
✗
intestines
teeth
stomach
feet
elbow
Both have two eyes.
The boy has round eyes.
The girl has oriental eyes.
Both have noses.
The girl has a big nose.
head
trunk
limbs
SCIENCE AND GEOGRAPHY 3• D.R. © 2009 Richmond Publishing S.A. de C.V.
PHOTOCOPIABLE
2 ■ The Human Body (External)
Both have curly hair.
The girl has straight hair.
Both have dark skin.
The boy has fair skin.
The girl has fair skin.

Worksheet
2
Name
Date
Reinforcement
Remember
Our senses help us understand things around us.
Each sense has an organ in the body. We see with our eyes. We hear
with our ears. We smell with our nose. We taste with our tongue,
and we touch things with our skin.
1. Look at the picture and answer the questions.
SCIENCE AND GEOGRAPHY 3• D.R. © 2009 Richmond Publishing S.A. de C.V.
water flowers bees ball Sun
1. What can the boy taste? He can taste the water.
2. What can he smell?
3. What can he hear?
4. What can he touch?
5. What can he see?
PHOTOCOPIABLE
■ The Sense Organs
3

Worksheet
3
Name
Date
Reinforcement
Remember
Bones are the hard, rigid parts of our body. They protect delicate organs
like our brain and heart. They also help us move around.
Cartilage is a flexible part of the skeleton. It is not as hard as bone.
The skeleton is made up of bones and cartilage.
1. Match the words to the skeleton.
vertebrae
skull
ulna
rib
fibula
tibia
SCIENCE AND GEOGRAPHY 3• D.R. © 2009 Richmond Publishing S.A. de C.V.
femur
2. Use the words to complete the sentences.
knee
PHOTOCOPIABLE
hard cartilage rigid bones
• Cartilage is not as
• Bones are hard,
• Joints are where two
hard
as bone.
parts of our body.
join together.
• The skeleton consists of bones and .
4 ■ Bones and the Skeleton

Worksheet
4
Name
Date
Reinforcement
Remember
Muscles are soft and flexible. Muscles are joined to bones by tendons.
When a muscle pulls on the adjoining bones, it gets shorter.
Bones and muscles make up the musculoskeletal system.
1. Use the words to complete the sentences.
SCIENCE AND GEOGRAPHY 3• D.R. © 2009 Richmond Publishing S.A. de C.V.
muscles rigid involuntary tendons
• The musculoskeletal system is made up of bones
and .
• Bones are hard and .
• Muscles can be voluntary or .
• Muscles and bones are joined by .
2. Match the words to the muscles.
PHOTOCOPIABLE
deltoid
abdominal
masseter
quadriceps
biceps
pectoral
■ The Musculoskeletal System
5

Worksheet
5
Name
Date
Reinforcement
Remember
The digestive system breaks down our food. Then it extracts
the substances our body needs.
The digestive system starts in the mouth. Then it continues through
the esophagus, the stomach and the intestine.
1. Match the teeth and the texts: draw lines.
2. Write the names of the organs.
Incisors chew food.
Molars cut food.
Canines tear food.
SCIENCE AND GEOGRAPHY 3• D.R. © 2009 Richmond Publishing S.A. de C.V.
1.
2.
3.
anus
2
3
PHOTOCOPIABLE
4.
5.
6.
6
4
5
1
6 ■ The Digestive System

Worksheet
6
Name
Date
Reinforcement
Remember
The respiratory system takes oxygen from the air into our body.
The circulatory system transports blood, carrying nutrients and oxygen,
around our body.
The excretory system cleans our blood.
1. Use the words to label the diagram.
SCIENCE AND GEOGRAPHY 3• D.R. © 2009 Richmond Publishing S.A. de C.V.
mouth lung nose trachea bronchi
nose
PHOTOCOPIABLE
2. Use the words to complete the sentences.
bladder excretory kidneys
• The
system cleans blood.
• The most important organs in the excretory system are the
.
• Urine collects in the .
■ The Respiratory, Circulatory and Excretory Systems
7

Worksheet
7
Name
Date
Reinforcement
Remember
Vertebrates have a skeleton on the inside and a backbone or spine.
Vertebrates differ in many ways. They differ from each other in their skin
and limbs, how they eat and breathe, how they are born, and how they
feed their babies.
1. Color the animals and complete the sentences.
feathers fur hair scales gills lungs fins legs wings
• A cat has hair.
• It uses its legs to move.
• It uses its lungs to breathe.
• A fish is covered with .
• It moves with its .
• It uses its
to breathe.
• A bird has .
SCIENCE AND GEOGRAPHY 3• D.R. © 2009 Richmond Publishing S.A. de C.V.
• It uses its
• It uses its
to move.
to breathe.
PHOTOCOPIABLE
• A crocodile is covered with .
• It uses its
• It uses its
to move.
to breathe.
• A rabbit has .
• It uses its
• It uses its
to move.
to breathe.
8 ■ Vertebrates

Worksheet
8
Name
Date
Reinforcement
Remember
Invertebrates have no bones on the inside and no backbone.
All invertebrates are oviparous.
Insects are the largest group of invertebrates.
SCIENCE AND GEOGRAPHY 3• D.R. © 2009 Richmond Publishing S.A. de C.V.
PHOTOCOPIABLE
1. Label the pictures.
• It has no backbone.
• It has legs.
• It has an exoskeleton.
• It is oviparous.
• It has an exoskeleton.
•
•
•
2. Use the words to label the diagram.
• It has a shell.
• It lives on land.
• It lives in the ocean.
• It has no limbs.
•
•
•
•
head antennae eye leg thorax abdomen wing
wing
■ Invertebrates
9

Worksheet
9
Name
Date
Reinforcement
Remember
Plants have roots, stems, or trunks, and leaves.
These are the organs of nutrition. Plants use these organs to make their
own food.
1. Label the diagram
and complete
the sentences.
• In a forest, I can see the
and the
2. Match the two columns.
t
of a tree.
• I cannot see .
Roots
The part of the plant that is above the ground.
The leaves grow from this part.
r
l
SCIENCE AND GEOGRAPHY 3• D.R. © 2009 Richmond Publishing S.A. de C.V.
Stem/Trunk
Leaves
The green parts of the plant that grow from the stem.
The part of the plant that is underground.
This part fixes the plant to the ground and absorbs
water and other substances.
PHOTOCOPIABLE
3. Look at the picture and answer the questions.
• Is the trunk soft or hard and woody?
.
• Is the fruit soft or hard?
.
10 ■ Plants