Green Environment (Term 3 Chapter 1 | 4th Science)
Evaluation
I. Choose the
correct answer.
1. What is the first step in
waste management?
(a) Waste disposal
(b) Waste separation
(c) Waste collection
Answer: (b) Waste
separation
2. Which is an example for
non-biodegradable waste?
(a) Paper cup
(b) Plastic plate
(c) Coconut shell
Answer: (b) Plastic
plate
3. _______ attracts more litter
so it is important to always put waste in a bin.
a. Waste collection
b. The environment
c. Litter
Answer: (C) Litter
4. ____________ is the first ‘R‛
in the Three R‛s.
(a) Reuse
(b) Reduce
(c) Recycle
Answer: (b) Reduce
5. Picking up the waste is called
__________.
(a) Composting
(b) Waste collection
(c) Recycling
Answer: (b) Waste
collection
II. Fill in the blanks.
1. Using
old jars for pickle is an
example of reusing waste.
(Using old jars for pickle/Saying
no to a plastic bag)
2. Bamboo
is used to make bags, dustbins and tooth brushes.
(Rose / Bamboo)
3. Plastic
is a big threat to our environment.
(Plastic / Light)
4. Multilayer
plastic is a non-recyclable
item.
(Glass / Multilayer plastic)
III. Match the
following.
1. Plastic waste - Three R‛s
2. Waste separation -
Eco-friendly material
3. Reduce, Reuse and Recycle -
Threat to environment
4. Stainless steel - Biodegradable,
recyclable and non-recyclable
Answer:
1. Plastic waste - Threat
to environment
2. Waste separation
- Biodegradable, recyclable and non-recyclable
3. Reduce, Reuse
and Recycle - Three R‛s
4. Stainless steel -
Eco-friendly material
V. Write true or
false.
1. 3R method reduces the amount
of waste that goes to landfills. (True)
2. Eco-friendly material is
harmful to the environment. (False)
3. Plastic bag, thermocol and
multilayer plastics are recyclable. (False)
4. We should not separate our
waste. (False)
VI. Answer in one
or two sentences.
1. What are the Three R‛s?
The three R’s stand for REDUCE, REUSE, RECYCLE
2. What is biodegradable waste?
Things that can be decomposed or broken down by
microorganisms are biodegradable wastes.
3. Write the different steps in
waste management.
There are four steps in waste management. They are
1. Separation of waste
2. Waste collection and transportation
3. Waste recycling and composting
4. Waste disposal
4. Name any five items which are
recyclable.
Paper, glass, metal, PET bottles, cardboard
VII. Answer the
following.
1. What can you do at home to
help waste management ? (or) How will you manage the household waste?
Waste at home should be separated into
biodegradable, recyclable and non -recyclable categories. Biodegradable waste
such as left-over food and vegetable waste can be broken down naturally to
create compost. Recyclable waste such as paper, glass and metal can be made
into new useful products. Non-recyclable waste should be kept separate and will
be sent to an open dump or landfill. This should be reduced as much as
possible.
2. What are the plastic items
that have been banned in Tamil Nadu?
Tamil Nadu is leading the way in India by banning
some one-time use plastic items.
List of items : Plastic carry bags, Plastic Plates, Water
pouches, Plastic straw & Plastic sheets
3. Write the benefits of
recycling.
Recycle is to take materials from things you throw
away and make new products by using them. Recycling takes energy and time but
saves the amount of 'new' resources (for example water, minerals, wood) we need
to make things.
4. What is meant by eco-friendly
material?
Things that can be decomposed or broken down by microorganisms
are biodegradable. They can return back to the soil and become food for plants.
These biodegradable items are environment friendly or eco-friendly materials.
ACTIVITY
Write the waste management process in the correct order.
(Waste disposal, Waste collection and transportation, Waste separation, Waste recycling and composting)
1. Waste separation
2. Waste collection and transportation
3. Waste recycling and composting
4. Waste disposal
ACTIVITY
List out four things that you can reduce, reuse and recycle at home or school.
ACTIVITY
Using old water bottles, make different things such as Bird feeder, Flower vase, Pen holder and Wall hanging as shown below.
ACTIVITY
Study the images below and write down three items you have at home in each category of waste.
Biodegradable | Recyclable items | Non-recyclable items
1. Biodegradable: Fruits, Vegetables, Seeds, Nuts
2. Recyclable: Paper, plastics, glass, metal
3. Non-recyclable: Medical waste, CFL lights, Plastic bags, Polystyrene
ACTIVITY
Form small groups and start collecting plastic litter from school grounds or from the local area around your house.
ACTIVITY
Write any five non-recyclable items that you use or have seen in shop.
Answer: 1 .Plastic carry bags 2. Straw 3. Plastic plates 4. Plastic sheets 5. Water pouches
Related Topics
Privacy Policy, Terms and Conditions, DMCA Policy and Compliant
Copyright © 2018-2024 BrainKart.com; All Rights Reserved. Developed by Therithal info, Chennai.