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SCIENCE GRADE 4
Name: ________________________________________ Date: _________________ Grade & Section: ______________________________ Score: ________________
LEARNING ACTIVITY SHEET
Quarter 1-Matter
WEEK 2 (Day 1-3)
Lesson 3: Materials That Undergo Decay
Activity 1: “What Will I Turn Into?”
Background Information for Learners
Republic of the Philippines Department of Education (DepEd) Region VIII (Eastern Visayas) Division of Leyte MATALOM SOUTH DISTRICT
CAHAGNAAN CENTRAL SCHOOL
SY: 2020-
Reminder: Read the background information carefully and do the activities. Answer questions in every activity. You may write your answer directly on the space provided for every question. Follow instructions religiously. If there’s something not clear for you may ask the help of the members of your family or you may send text or chat me with these cell numbers _______________ or
New Science Words:
Decay- to be slowly destroyed into bits in the presence of water, air and soil.
Not all plants and animals decay at the same time. Some were compressed under water and thick layers of soil over millions of years. They were converted into fossil fuels such as coal, oil or natural gas. These oils are used by power stations, factories, motor vehicles, and others. The organic matter in soil is derived from plants and animals. It becomes organic fertilizers. Organic fertilizer from compost pit does not harm but enrich the soil. Some factors that contribute to the decaying process of the of the materials are sunlight, water, soil and action of microorganisms. Leftover foods are kept in refrigerators to avoid or delay spoilage since microorganisms that break down food do not grow fast in cold temperature. Science LM p. 10
Note:
You may browse in YouTube this topic - Science IV: Lesson 3- Materials That Undergo Decay https://youtu.be/1fyW5SOFANA?t=
I. Learning Competency:
Classify materials based on the ability to absorb water, float, sink, undergo decay.
CODE: S4MT-Ia-i (MELC, p. 378)
Subtask: Classify materials Classify materials whether they decay or do not decay;
II. Directions/Instructions/Motivation
III. Pupil’s Activity Let us find out which of the materials at home easily decay. You have to do the activity with your elder sister or brother or with your parents. Be sure to handle things carefully to avoid accident. Follow carefully the procedure or steps. You Will Need: 3 pcs. Of transparent plastic cups, slices of bread, plastic, rubber slipper, plastic bottle cups (without a cork or carton) kangkong leaves or camote leaves, water, 2 slices of banana, leftover food and paper Procedure:
- Describe the characteristics of each of the materials as one at a time. Note color, texture, size, smell and others. Record your observation on a table below.
- Cut each of the materials into a smaller pieces.
- Place each of the cut materials in separate transparent cup. Label cups according to materials.
- Moisten each set up with ½ spoonful of water.
- Tighten the plastic sheet with a rubber band or thread to prevent ants and other insects to get to the food.
- Bring your set up outside where it gets both sunlight and partial shade during the day.
- Visit your set up every day for seven days. On the second day, remove the cover of every set up and turn the contents with a stick. Put back the plastic cover.
- Observe each material in every cup. Describe the texture, odor, size and color.
What properties of matter did you learn from lessons 1& 2?
Have you wondered why food become spoiled?
What properties of matter did you learn from lessons 1& 2?
Have you wondered why food become spoiled?
Formative Test Let’s find out how much you know about classifying materials that undergo decay. Direction: Given are the materials in the drawing. Classify the materials that undergo decay, By checking them. Note: Pictures were taken from the Teacher’s Guide Science 4 p.10-11.
SCIENCE GRADE 4
Name: ________________________________________ Date: _________________ Grade & Section: ______________________________ Score: ________________
LEARNING ACTIVITY SHEET
Quarter 1-Matter
WEEK 2 (Day 4)
Long Quiz
I. Learning Competency:
Classify materials based on the ability to absorb water, float, sink, undergo
decay.
CODE: S4MT-Ia-i (MELC, p. 378)
Subtask: Classify materials Classify materials whether they decay or do not decay;
II. Directions/Instructions/Review
Based on your findings in your activity, which of the materials
undergo decay?
What are the characteristics of the materials that undergo decay?
III. PUPIL’S ACTIVITY
Let us find out how much you learned. You have to do the assessment by your own, but if there’s something which you do not understand, feel free to ask guidance from your elder sister or brother or with your parents. Read the instructions carefully. Republic of the Philippines Department of Education (DepEd) Region VIII (Eastern Visayas) Division of Leyte MATALOM SOUTH DISTRICT
CAHAGNAAN CENTRAL SCHOOL
SY: 2020-
Reminder: Read the background information carefully and do the activities. Answer questions in every activity. You may write your answer directly on the space provided for every question. Follow instructions religiously. If there’s something not clear for you may ask the help of the members of your family or you may send text or chat me with these cell numbers ______________ or
TEST 1 (Taken from Item Bank pp.7 Quarter 1)
Identification Directions: Put a / mark before the number if the material undergoes decay and X mark if the material doesn’t undergo decay. _____1. plastic bottle _____2. leaves _____3. leftover food _____4. tin cans _____5. piece of bread
TEST II (Taken from Item Bank pp.7-8 Quarter 1)
Multiple Choice Directions: Read each item carefully and encircle the letter which corresponds to the correct answer.
- Which group of materials undergo decay? A. kangkong stem, potato peel, and left-over meat B. bottle of mineral water, glass, and empty container of catsup C. empty cans of sardines, corned beef, and soft drink
- Decaying materials like leaves and fruit peelings can be made into __________. A. animal food B. decorative C. fertilizer
- Which of the listed materials below decomposes easily? A. candy wrapper B. ripe banana C. perfume bottle
- How are you going to dispose decaying materials commonly found at home?
A. throw them into the river
B. throw into the compost pit
C. mix with the non-decaying materials
- What one should do with the decaying garbage in order to prevent him/her from getting sick?
A. dispose of decaying waste materials properly
B. throw the decaying waste materials into the river
C. dump decaying waste materials into the nearest dumping site
TEST III (Taken from Item Bank pp.9 Quarter 1)
True or False
Directions: Write TRUE if the statement is correct and FALSE if wrong. _______1. All materials undergo decay. _______ 2. Decaying materials can be made into compost. _______ 3. Proper waste disposal can cause harm to human health. _______ 4. Wastes should be segregated as decaying and non- decaying. _______5. Fish bone, meat and fruit peelings are examples of materials that undergo decay.
WEEK 2- DAY 4 (LONG QUIZ)
TEST 1 (Taken from Item Bank pp.7 Quarter 1)
Identification
Directions: Put a √ mark before the number if the material undergoes decay and X
mark if the material doesn’t undergo decay. __X___1. plastic bottle
_√____2. leaves
__√___3. leftover food
__X___4. tin cans
__√___5. piece of bread
TEST II (Taken from Item Bank pp.7-8 Quarter 1)
Multiple Choice Directions: Read each item carefully and encircle the letter which corresponds to the correct answer.
- Which group of materials undergo decay? A. kangkong stem, potato peel, and left-over meat B. bottle of mineral water, glass, and empty container of catsup C. empty cans of sardines, corned beef, and soft drink
- Decaying materials like leaves and fruit peelings can be made into __________. A. animal food B. decorative C. fertilizer
- Which of the listed materials below decomposes easily? A. candy wrapper B. ripe banana C. perfume bottle
- How are you going to dispose decaying materials commonly found at home?
A. throw them into the river
B. throw into the compost pit
C. mix with the non-decaying materials
- What one should do with the decaying garbage in order to prevent him/her from getting sick?
A. dispose of decaying waste materials properly
B. throw the decaying waste materials into the river
C. dump decaying waste materials into the nearest dumping site
TEST III (Taken from Item Bank pp.9 Quarter 1)
True or False
Directions: Write TRUE if the statement is correct and FALSE if wrong. __False _1. All materials undergo decay.
__True _ 2. Decaying materials can be made into compost. _False 3. Proper waste disposal can cause harm to human health. __True _ 4. Wastes should be segregated as decaying and non- decaying. ___True__5. Fish bone, meat and fruit peelings are examples of materials that undergo decay. Prepared by: LORENA L. MALIGANG Grade 4 Adviser/ MT- Checked by: YOLANDA S. SAMALCA Principal - Noted: ESTELA A. JUNTILLA PIC
