Riddles
Topic vocabulary
Phrasal verbs
Word formation
100

have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

A map

100

Keep something

preserve

100

Explode

blow up

100

danger

dangerous

200

You go at red and stop at green. What am I?

A watermelon

200

Nature conservation methods

recycle

200

Stop buring

go out

200

fog 

foggy

300

 What has 88 keys, but can't even open a single door?

A piano 

300

They often do this when talking about the weather

forecast

300

Prevent from entering

keep out

300

invade

invasion,invader

400

I have two hands, but I can not scratch myself. What am I?



A clock 



400

Period of extremely hot weather 

heatwave

400

Make something from buring

put out

400

deep

deeply, depth

500

What belongs to you, but other people use it more than you?

your name

500

A device that orbits and photographs our planet

satellite

500

Put something on a wall

put up

500

pollute

pollution, polluted