Travel by minecart to a point at least 500m in a single direction from where you started.

Use planks and sticks to make a hoe.

Wear a full suit of Iron armour.

Build some bookshelves to improve your enchantment table.

Brew a potion.

Catch and cook a fish!

Use Shears to obtain wool from a sheep.

Construct a Nether Portal.

Mine 1,728 Cobblestone and place it in a chest.

Attack and destroy a monster.

Smelt an iron ingot.

Construct a better pickaxe.