Show model answer and explanation
roots
Roots bind soil particles.
Class 4 · Bangla Version · General science
Earth, water and environmental care
Explore earth, water and environmental care with an example and your own answers.
Original Kidemy foundation practice · Read the example, write your answers, then check. This starter is shared across class versions; it is not a complete board-specific lesson or course.
Open this topic in Skills Lab →
Learn the idea
Soil, water and air support many living things. Changes such as littering or removing vegetation can affect a habitat.
Worked example
Roots can help hold soil in place. Keeping drains clear helps water flow through them.
- Read the example and explain which rule or evidence it uses.
- Try each task yourself, then compare the answer and its reason.
Your written practice
Show your working on paper and enter your answer here. If it does not match, compare the model and try again.
Show model answer and explanation
an appropriate bin
Litter can block drains and pollute water.
Write in your own words. A guardian or teacher should review this response.
Show model answer and explanation
Report a leaking tap so it can be repaired.
Accept a practical, safe action and an explanation of the water saved.
Take it further
Apply the idea in a new situation and explain your method. Open writing needs a guardian or teacher to review it.
Show model answer and explanation
sand
Undissolved sand particles can be caught by a suitable filter.
Show model answer and explanation
reuse
Reuse gives an item another use.
Write in your own words. A guardian or teacher should review this response.
Show model answer and explanation
Some dissolved substances and microorganisms can remain even when water looks clear.
Do not drink test water; clarity alone is not a safety test.
Teacher-led lessons, schedules and prices for this outline are upcoming. You can use any starter practice above now without booking.
Your next step
Solo practice works without an account. Sign in to save a practice record to your learner profile.
Keep practising
Exact lesson links and related activities are labelled separately. Return-to-course links retain your selected learning path.