Font size
Worksheetschanging material
Total questions: 81
Worksheet time: 54mins
Capable of being bent usually without breaking..
(a)
difficult or impossible to bend , not changing
(a)
difficult or impossible to bend , not changing
flexible
rigid
Capable of being bent usually without breaking..
flexible
rigid
It is holding one end of an object and pulling the other end.
(a)
It is curling an object into opposite directions and forming spiral shape
(a)
It is the folding an object in half.
(a)
It is squeezing the object in different directions.
(a)
the degree of hotness or coldness its called
(a)
an instrument for measuring temperature
is ...
(a)
What makes a place colder,
making the temperature higher or lower?
(a)
What makes a place hotter, making the temperature higher or lower?
(a)
The harder the material, the slower it will melt.
True
false
The harder the material, the faster it will melt.
true
false
a change in a substance from its solid to its liquid state.
called ...
(a)
-process that involves a substance being broken down and changed into different substances
called...
(a)
process that involves a substance being broken down and changed into different substances
is
melting
burning
when materials can be changed back to how they were before the heating or cooling.
(a)
Reversible changes is
when materials cannot be changed back again
when materials can be changed back to how they were before the heating or cooling.
Irreversible changes is ...
when the materials cannot be changed back again
when materials can be changed back to how they were before the heating or cooling.
when the materials cannot be changed back again and new materials are always formed called
(a)
when water change into ice ..
what changes?
reversible changes
irreversible changes
when you burn a meat and it changes into a steak .
what changes hapen?
reversible changes
irreversible changes
Which material are melts when heated ..
crayon
candle
butter
wood
water
Help Karlo analyse if the statement below is true or false.
If you heat ice, it melts.
true
false
Help Arka analyse if the statement below is true or false.
Lowering the temperature of an aircon makes the room warmer ?
true
false
Help Kenzie analyse if the statement below is true or false.
Higher the temperature of an aircon makes the room warmer?
true
false
Help Richard analyse if the statement below is true or false.
You make frozen ice cream by heating it up.
true
false
Help Alessa analyse if the statement below is true or false.
Candle wax frozen when heated.
true
false
Help Maya analyse what change happens from orange juice into popsicles?
reversible changes
irreversible changes
This change has been caused by
heated
cooled
Is this change reversible?
true
false
Is this change irreversible changes?
true
false
Chocolate bar is a solid material.
If heated, it will be ...
(a)
When chocolate bar a solid material and heated, it will be change into ...
solid
liquid
Chocolate bar is a solid material and if heated this is a ..
reversible changes
irreversible changes
If you want changes from the melted chocolate into a solid chocolate. What you have to do?
heat up
cool down
Increasing the temperature of something is called ..
heating
cooling
reversible change
Decreasing the temperature of something is called ..
heating
cooling
irreversible changes
Cooking an egg is an example of a
reversible change
irreversible change
melting
Melting and freezing butter is an example of a ....
irreversible change
melting
reversible change
The ttype of change that cannot be undone is called
reversible change
irreversible change
melting
Alya made a popsicle from a watermelon juice, can the popsicles change back to watermelon juice?
yes
no
Which of these is NOT a reversible change?
melting chocolate
cookie dough to cookie
juice to popsicle
water to ice
Which of these is reversible change?
water to ice
melting chocolate
meat to steak
bread to toast bread
What make a place colder?
lower the temperature
higher the temperature
what make a place hotter?
lowering the temperature
making the temperature high
what is an irreversible change?
something you can change back
something you cannot change back
what is reversible change?
something you can change back
something you cannot change back
when you burn wood , is that change reversible or irreversible change?
reversible
irreversible
when you cook an egg , is the change reversible or irreversible changes?
reversible
irreversible
Burning woowd is a reversible change.
true
false
when a candle burns, the hot flame begins to ... the wax
cool
melt
solid
A liquid will change to a .... if it is cooled to a low enough temperature.
If water is put into a freezer it changes to ice.
melt
solid
hot
the moon reflect lights from the
(a)
light sources makes ..
(a)
what is burning?
when you fire up something it will burned and broken down and changed into different substances
when solid change into liquid state
Light may come from things found in nature. Most of our lights come from the sun. Light can also come from things made by people. For example, people make candles to use as a light.
Help Nadine to examine whether the picture below are natural or artificial.
natural
artificial
Help Nadine to examine whether the picture below are natural or artificial.
(a)
Help Nadine to examine whether the picture below are natural or artificial.
(a)
Help Nadine to examine whether the picture below are natural or artificial.
street light
(a)
Help Nadine to examine whether the picture below are natural or artificial.
lightning
(a)
Help Nadine to examine whether the picture below are natural or artificial.
lamp
(a)
Help Nadine to examine whether the picture below are natural or artificial.
firefly
(a)
Help Nadine to examine whether the picture below are natural or artificial.
stars in the sky
(a)
Help Madeline analyse if the statement is true or false.
The Moon reflects light from the Sun.
true
false
Help Madeline analyse if the statement is true or false.
Water and mirrors shine their own light.
true
false
Help Madeline analyse if the statement is true or false.
Water and mirrors reflect shine from light.
true
false
Help Madeline analyse if the statement is true or false.
Light sources make light.
true
false
Madeline is learning about light. Read the short paragraph below and answer the question that follows.
“Light”
Imagine a world without light, it would be difficult to live. Light can be divided into two groups; natural light and artificial light. Natural light comes from Sun and Stars. Artificial lights are man-made such as candles, electric lights, bulbs, torches and televisions. Light is very important to our lives today. We use light to read, write and play in the morning. Many people need light all night long, like hospitals and police stations.
Questions:
Name two kinds of natural light
(a)
Madeline is learning about light. Read the short paragraph below and answer the question that follows.
“Light”
Imagine a world without light, it would be difficult to live. Light can be divided into two groups; natural light and artificial light. Natural light comes from Sun and Stars. Artificial lights are man-made such as candles, electric lights, bulbs, torches and televisions. Light is very important to our lives today. We use light to read, write and play in the morning. Many people need light all night long, like hospitals and police stations.
Questions:
Name four kinds of artificial light
(a)
Light travels in ..
zig zag
straight lines
waves
Which one is source of light?
moon
lamp
How do we see an object?
light reflects off the object and into our eyes
light travels from our eyes and reflect off the object
the object produces its own light
light reflect off our eyes and enters the object
Lights needs to enter our light for us to ...
see
play
walk
Which of these statements is false?
light travels very fast
light can pass through any material
light travels in straight line
we need light to see
Which one is not the source of light?
lamp
candle
ball
An example of a natural light source is ..
the moon
a candle
the sun
a torch
The moon ...... the suns light.
reflect
absorbs
turns on
dims
Which things gives out light?
lamp
ballon
diamond
what gives us light at noon?
lamp
tree
sun
