Unit 1:  Plants and Animals

Plants Are Living Things; Parts of Plants; Plants Make New Plants; Everyone Needs Plants; All Kinds of Animals; Animals Meet their Needs; Animals Grow and Change.  

Vocabulary for Unit 1:

 1.    minerals- bits of rock and soil that break down

 2.    flower- the part of a plant that makes seeds

 3.    fruit- the plant part that grows around seeds

 4.    seeds- the plant part that can grow into new plant

 5.    pollen- the powder inside a flower that can make seeds grow

 6.    life cycle- shows how a living thing grows, lives, and dies

 7.    oxygen- a gas made by plants that is found in the air we breathe

 8.    mammals- animals with hair or fur that breathe with body parts called lungs

 9.    reptiles- animals with dry, scaly skin

10.    amphibians- animals that start their lives in the water

11.    prey- an animal that is being hunted

12.    food chain- the order in which living things need each other for food

13.    shelter- a place where an animal can live and be safe

14.    larva- the stage in the life cycle of a butterfly when the insect is a caterpillar

15.    pupa- the stage in the life cycle of a butterfly when a caterpillar spins a cocoon around itself



Unit 2:  Homes for Plants and Animals

Where Plants and Animals Live; Life in a Woodland Forest; Life in a Rain Forest; Life in a Desert; Life in the Arctic; Life in a Fresh Water Habitat; Life in a Salt Water Habitat; Caring for Earth's Habitats 


 1.    habitat- a place where plants and animals can meet their needs

 2.    woodland forest- a habitat that gets enough rain and sunlight for trees to grow well

 3.    migrate- to move to another place

 4.    rain forest- a habitat that gets rain almost every day

 5.    desert- a dry habitat that gets very little rainfall

 6.    Arctic- a very cold place near the north pole

 7.    pond- a fresh water habitat in which the water stays in one place

 8.    stream- a fresh water habitat with moving water

 9.    ocean- a large, deep body of salt water

10.    food web- a group of several food chains that are connected

11.    pollution- waste that harms land, water, or air

12.    recycle- use waste to make new things that can be used again


 Unit 3:  Changes on Earth

Water and Our Weather; Earth Can Change Slowly; Earth Can Change Quickly; Clues in Rocks; Putting the Clues together; Life on Earth Changes


 1.    evaporate- to change into a gas

 2.    water vapor- water that goes into the air

 3.    condense- to change into a liquid

 4.    water cycle- the movement of water between the ground and the sky

 5.    precipitation- water falling from the sky as rain, snow, or hail

 6.    erosion- when worn down rocks are carried away

 7.    earthquake- the shaking of the ground caused by shifting of Earth's crust

 8.    landslide- a sudden movement of soil down a hill

 9.    volcano- a mountain formed when hot, melted rock bursts through the surface and builds up

10.    fossil- remains of something that lived long ago

11.    paleontologist- a scientist who studies things that lived long ago

12.    skeleton- a full set of bones

13.    extinct- when a living thing dies out so that there are no more of its kind living on Earth

14.    endangered- in danger of becoming extinct


  Unit 4:  The Sun and Its Family

Day and Night; Seasons; The Moon; The Moon  Changes; Stars; Planets

These sites offer information and games about our Solar System: 

Memory Game:

Make a Solar System:

Exploring the Planets:


Explore the Planets:

Order the Planets Quiz: 



 Solar System Switch-a-Roo:


 1.    rotates- spins

 2.    axis- a line through the center of a spinning object

 3.    Sun- the closest star to Earth

 4.    orbit- the path an object takes as it moves around another object

 5.    equator- an imaginary line across the middle of Earth that separates the northern part from the southern part

 6.    Moon- a ball of rock that travels around Earth

 7.    craters- large holes on the surface of the Moon

 8.    phases- a change in the Moon's shape as we see it from Earth

 9.    star- a hot ball in the sky that makes its own light

10.    constellation- a star pattern that makes a picture

11.    solar system- the Sun, nine planers, and all of their moons

12.    planet- a huge object that travels around the sun


   Unit 5:   Matter and Energy

Matter All Around; Three States of Matter; Changing Matter; Hear; Light; Sound


 1.    matter- anything that takes up space and has mass

 2.    mass- the amount of matter in an object

 3.    property- tells you something about an object

 4.    temperature- measures how warm something is

 5.    solid- a state of matter that has a shape of its own

 6.    liquid- a state of matter that takes the shape of its container

 7.    volume- the amount of space that something takes up

 8.    gas- a state of matter that spreads out to fill its container

 9.    physical change- a change in the size or shape of matter

10.    chemical change- a change in matter that makes new matter 

11.    energy- the power to make matter move or change

12.    heat-  a kind of energy that can make something melt or boil

13.    fuel- something that gives off heat when it burns

14.    light- a kind of energy that lets us see

15.    reflect- when light bounces off an object

16.    refraction- when something bends light

17.    sound- a kind of energy that you hear

18.    pitch- how high or how low a sound it

19.    vibrate- the way a musical instrument makes its sounds 


  Unit 6:  Watch It Move

Pushes and Pulls; Forces and Change; Levers; Ramps;  All About Magnets; Everyday Magnets


 1.    force- a push or a pull that makes something move or change direction

 2.    gravity- a force that pulls things toward Earth

 3.    friction- a force that slows down moving things

 4.    simple machine- something that uses force to make work easier

 5.    lever- a simple machine made of a bar that rests on a fixed point

 6.    fulcrum- the fixed point on which a lever rests

 7.    ramp- a simple machine with a slanted surface

 8.    attract- to pull

 9.    poles- the ends of a magnet where the pull is strongest

10.    magnetic field- the area around a magnet where its force pulls

11.    compass- a tool with a magnetic needle that always points to Earth's North Pole

12.    repel- the same poles of two different magnets push away from each other