Food & Water - Grade 4 Science Worksheet 2 - Free Printable

Download this free printable Food & Water worksheet for Grade 4 Science. Perfect for practice, homework, and classroom use.

Grade 4 Science practice

This printable Food & Water worksheet is part of the free WizKidsHub Grade 4 Science collection. Print it at home or in the classroom for extra practice.

What this worksheet teaches

• Describe why roughage and water are needed even though they give no energy.
• Compare methods of food preservation - drying, salting, refrigeration, canning - and say when each is used.
• Trace the journey of water from a source to a tap, and identify where it can get contaminated.
• Explain how everyday water wastage happens at home and calculate a simple way to reduce it.

How to use this worksheet

For the preservation section, find one dried, one salted and one refrigerated item at home and line them up. Writing the answers next to three real examples beats reciting the list.

Sample questions from this worksheet

1. Which step in water purification removes germs?
2. Which is a natural purifier of water?

Frequently asked questions

Does the worksheet need a science lab or experiment?

No. Everything is answerable on paper, though a two-minute look at kitchen labels and preserved foods makes the answers noticeably stronger.

Is roughage the same as fibre?

Yes. Textbooks at this level use 'roughage', and it means the fibre from vegetables, fruit skins and whole grains that helps the body pass waste.

Why is water called a nutrient if it gives no energy?

Because the body cannot carry out digestion, transport nutrients or remove waste without it. Grade 4 syllabuses class both water and roughage as essential even though neither supplies energy.