activity

Sometimes you need only part of an avocado for your taco or toast. But if you save the rest for later, your avocado will turn brown (no!). Can you keep it fresh and green? Find out in this kitchen science experiment.

safety
  • Uses a knife
difficulty
  • Beginner
time
  • 5 minutes, plus 8 to 24 hours waiting time

hey curious cook—

Have you heard about our Young Chefs’ Club? Members get a themed (and kid-tested) box delivered each month!

Prepare Ingredients

1
lemon
1 cup
water
1
ripe avocado

Gather Equipment

Butter knife or chef’s knife
Cutting board
Small bowl
Soupspoon
Small plate
1
 
1
lemon

Use knife to cut lemon in half crosswise (not through ends). Rinse and dry knife.

 
2
 
1 cup
water

Squeeze juice from lemon halves into small bowl. Add water to bowl.

 
3
 
1
ripe avocado

Use knife to cut avocado into 2 halves and use soupspoon to remove pit. Discard pit.

Cutting Avocado

Use knife to cut avocado in half lengthwise around pit.

Using your hands, twist both halves in opposite directions to separate.

Use soupspoon to scoop out pit.

 
4
 

Place 1 avocado half, cut side down, in bowl with lemon juice mixture. Place second avocado half on small plate, cut side up. Set bowl and plate in a spot where they won’t be disturbed.

 
5
 

Let avocado sit for at least 8 hours or up to 24 hours.

 
6
 

Time to observe! Gently turn over avocado half in lemon juice mixture. Do the 2 halves look the same? Different? How so?

 
7
 

Eat your avocado! Both avocado halves are safe to eat—use a spoon to gently scrape off any brown parts. The flesh underneath should be green. Will you use the avocado to make guacamole or avocado toast? Will you put it on top of a salad . . . or a taco?