Rain is likely tomorrow.
Speculation
The Earth goes around the Sun.
Fact
People may live on Mars one day.
Speculation
London is the capital of England.
Fact
Water freezes at 0°C.
Fact
A week has seven days.
Fact
Cars may fly in the future.
Speculation
Dogs have four legs.
Fact
Life will be very different in 100 years.
Speculation
This class might finish early today.
Speculation
I believe that everyone will speak English one day.
Speculation
A triangle has three sides.
Fact
Hippocrates was probably born in 460 B.C.
Speculation
The heart pumps blood through the body.
Fact
