What do we call the thing that goes into the wall socket?
battery
plug
wheel
Which invention helps us find information online?
telescope
search engine
thermometer
What do machines do?
make food disappear
turn into animals
make our lives easier
Which invention came first?
search engine
microscope
Which is older?
search engine
thermostat
What do complex machines need to work?
electricity or batteries
human energy only
water only
Which machine plugs into a wall socket?
battery
plug
wheel
What kind of energy does a TV use?
wind energy
human energy
electricity
What do we use to look at stars for things far away?
microscope
telescope
thermometer
The first search engines were made before telescopes.
false
true
What was one of the first computers used for?
maths calculations
playing games
watching videos
Which machine uses human energy?
mop
TV remote
satellite
What do simple machines have?
lots of parts
batteries only
few or no moving parts
What machine usually uses batteries?
vacuum cleaner
microwave
remote control
What machine helps doctors see inside your body?
X-ray machine
search engine
telescope
Which invention helped people cook and stay warm long ago?
X-ray machine
search engine
fire
What invention helps us know the weather from space?
thermometer
satellite
X-ray
Which machine is a complex machine?
inclined plane
escalator
ramp
Which invention changed from horse carts to cars over time?
the wheel
fire
microscope
What do we use to measure temperature?
microscope
thermometer
wheel
Which invention is newer?
telescope
satellite
What modern machine is used today instead of old ploughs pulled by animals?
telescope
bicycle
tractor
True or False: Inventions can change and improve over time.
true
false
Which of these is a simple machine?
pulley
escalator
airplane
What tool helps us to see very tiny things?
microscope
X-ray
satellite