Grade 5 science: explain connections
Connect an observation to an explanation. Explore how living things depend on one another, how water changes state, and how a fair comparison works.
Follow a simple food chain
In grass → grasshopper → frog, the grasshopper eats grass and the frog eats the grasshopper. Arrows point from the food toward the organism that consumes it, showing the direction of energy transfer.
Plants use light to make food. Animals get energy by consuming plants or other animals. A real habitat has many connected feeding relationships; one short chain is only a simplified model.
Keep a comparison fair
Condensation changes water vapour into liquid water. Droplets on the outside of a cold glass form when water vapour in surrounding air cools and condenses; they are not water leaking through the glass.
To compare how quickly ice melts in two places, begin with similar-sized ice pieces in similar containers. Change the place, while keeping other starting conditions as similar as practical. Work with a grown-up, and clean up water to avoid slips.
Try the questions
No timer, account or saved answers. Choose an option to see an explanation.
Printable practice
Write your answer and explain your thinking. Answers appear on a separate printed page.
- In grass → grasshopper → frog, what eats the grasshopper?
Grass · Frog · Sunlight
- Water vapour changing to liquid is called…
condensation · melting · freezing
- To compare ice melting in two places fairly, start with…
very different ice sizes · similar ice sizes and containers · hot water in only one container
Answer key and explanations
- Frog — The arrow leads from the grasshopper to the frog that eats it.
- condensation — Condensation turns water vapour into liquid droplets.
- similar ice sizes and containers — Similar starting conditions help you compare the effect of the place.