This document provides instructions for an investigation into the composition of kitchen garbage. Students are asked to classify their garbage into different materials, weigh each material in separate bags, and record the weights in a table with categories like plastic, paper, meat, and vegetables. They will then use the data to create a graph in PowerPoint showing the breakdown of materials in their average daily kitchen garbage. The goal is to analyze what common items are thrown out.

1. Investigation
Science
Homework

2. Investigation
What is in your kitchen garbage?

3. With a little help
• Classify your kitchen garbage: use different
bags so you don´t have to touch the garbage.
• Weigh the bags.
• Ask people to throw the usual garbage
Plastic
Meat
/bones
/egg shells
Paper and
cardboard
Vegetables

4. What you need to do
• Ask people to throw the usual garbage.
• We need to know what you throw on an
average day.
Plastic
Meat
/bones
/egg shells
Paper and
cardboard
Vegetables

5. What is in my kitchen garbage
Monday 27/4/15
categories weight
Plastic (bags, bottles, etc)
Paper / cardboard
Meat/bones/eggshells
vegetables
Milk cartons
Food scraps
metal
glass
(you can add more categories if
necessary)

6. Make a graph
Garbage weight
plastic
paper cardboard
meat bones and eggshells
Vegetables
milk cartons
food scraps
total

7. How to make a graph in PowerPoint