Plants

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Plants

Keeping Healthy

The breakdown of food is called: DIGESTION

We have 4

types of

teeth Plantswhich

start

digestion in

our mouth.

INCISORS

(cut)

CANINES

(tear)

PRE MOLARS

(chew)

MOLARS

(chew)


Keeping Healthy

We can look after our teeth by . . .

… brushing

our teeth

twice a day

Plants

… visiting the

dentist

… eating and

drinking less

sugary

foods/drinks

…chewing sugar

free gum

Prokaryotes

… flossing our

teeth


Keeping Healthy

The skeleton All living

- helps us to move

things

- protects vital organs

- supports the body

Plants

Most muscles work in pairs.

When one muscle contracts,

the other relaxes. e.g. the

biceps and the triceps. These

are called

ANTAGONISTIC MUSCLES

Prokaryotes


Keeping Healthy

All living

things

The heart pumps blood

around

the body.

Plants

Prokaryotes

Arteries carry blood Away

from the heart

VeIns carry blood Into

the heart


Keeping Healthy

All living

When we exercise we things notice several changes…

Breathe faster to

get more oxygen

Into our body

Pulse rate gets quicker

as heart pumps quicker

Plants

Sweat to cool

down

Go red as

blood vessels

move closer to

skin surface


Plants

Keeping Healthy


Life Cycles

M

R

S

G

R

E

N

ovement

espiration

ensitivity

rowth

eproduction

xcretion

utrition


Life Cycles

Carpel

The stigma is

sticky to keep hold

of the pollen.

The style

supports the

stigma and

connects it to

the ovary.

The ovary is

where the ovules,

or eggs, are.

The petals attract

insects.

The anther is

The part that

makes the pollen

The filament

holds up the

anther.

The sepal leaves protect

the flower before it

opens.

Stamen


Life Cycles

All living

things

Water

Wind

Plants

Types of seed dispersal

Animal

Explosion


Gases around us

All living

things

Plants

•Particles close together

–strong bonds

•Doesn’t take the shape

of container

• Doesn’t change volume

p

•Particles close

together – weak bonds

•Take the shape of the

container

•Doesn’t change

volume

•Particles spaced out

– very weak bonds

•Take the shape of the

container

•Expands its volume


Changing state

All living

things

HEATING

p

COOLING


Earth, Sun and Moon

Plants

The sun is a star – a

ball of burning gas

The moon is a satellite –

it travels around the Earth

The Earth is a planet – it

travels around the Sun

They

are

all

spherical


Earth, Sun and Moon

All living

things

Length of time for the Earth

to spin on its axis once

Plants

Length of time for the moon

p

to orbit the Earth

Length of time for the Earth to

orbit the Sun


Earth, Sun and Moon

All living

things

Day and night is caused by the

Earth spinning on its axis

Plants

The sun appears to rise in the East

and set in the West

The sun is higher in the sky during

the summer

p

The sun seems to be highest at

midday


Earth, Sun and Moon

Shadows are

created when

an object

blocks the

light

Plants

Shadows get

longer

throughout

the afternoon

p

Shadows

are

shortest

at midday

Shadows get

shorter

throughout

the morning


Changing sounds

Sounds are made when something vibrates

Sounds travel best through

then

then

Plants

Sounds don’t travel through a

(complete

empty space)

Hard materials reflect sounds causing an echo


Changing sounds

Thinner…

Tighter…

Shorter …

… string,

… skin

… air column

p

Thicker…

Looser…

Longer…

… string,

… skin

… air column


Interdependence and adaptation

LIGHT

p

AIR

WATER

MINERALS /

FERTILISERS


Interdependence and adaptation

AND

ANIMALS NEED PLANTS PLANTS NEED ANIMALS

Animals need plants

forAnimals need

plants

- food

Plants

-shelter

-shade

p

Plants need animals

- for the fertiliser they

provide

- to disperse seeds


Interdependence and adaptation

GRASS GRASSHOPPER TOAD

SNAKE HAWK

IS EATEN BY IS EATEN BY IS EATEN BY IS EATEN BY

PRODUCER

PREY

HERBIVORE

CONSUMER

PREY

PREDATOR

CARNIVORE

CONSUMER

PREY

PREDATOR

CARNIVORE

CONSUMER

PREDATOR

TOP

CARNIVORE

CONSUMER


MICROBES

Illnesses e.g. a cold

Plants

Tooth decay

Mouldy food

p

Help dead materials

decay into compost

Makes bread

Produces cheese

Produces yoghurt

Produces beer


DISSOLVING

If something

dissolves it

breaks into

tiny pieces

p

If something

dissolves it is

soluble

The solid

mixes with

the liquid


REVERSIBLE AND IRREVERSIBLE CHANGES

Plants

To separate a

dissolved solid

from a liquid,

evaporate the

liquid and the

solid is left

p

To separate an insoluble

liquid from a solid use

filtration (or sieving)


Reversible and irreversible changes

(Physical changes)

These changes can be turned back to the original product

Chocolate

melting

Ice

melting

Candle melting

Plants

p

(Chemical changes)

These changes cannot be turned back to the original product

Candle

burning

rust

Baking a

cake

Cooking toast

Popcorn popping


Forces

Plants

GRAVITY

p

Less gravity on the

moon


Forces

Plants

Gravity Upthrust

If gravity = upthrust

The object will float

p

UPTHRUST

If gravity is greater

than upthrust, the

object will sink


Forces

Plants

Air resistance

AIR

RESISTANCE

Things moving in the

air are slowed down

by air resistance

Gravity

Cars and aeroplanes have

smooth lines to reduce air

resistance so they can go as

fast as possible


Forces

p

Plants Friction Caused when 2

surfaces rub

against each

other


LIGHT

Plants

p


LIGHT

These objects block the

light and make a shadow

e.g house, brick

Plants

These objects allow some

light p to pass through them

e.g sunglasses, lampshade

These objects allow light

to pass fully through them

e.g glass


LIGHT

Light source object eyes

Plants


Changing circuits

Electrical insulators

Electrical conductors

Plants

p


Changing circuits

bulb cell 2 cells switch

Plants

p

A bulb will only

light up if the

circuit is

complete


Changing circuits

To make a bulb brighter you could…

… add another cell …shorter wires … higher voltage cell

Plants

p

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