Earth Science W2.pptx

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This will take you on a journey on how and why Earth is so special. This material was crafted to give you assistance to understand the concepts about the characteristics of the Earth that are necessary to support life. Lessons are bounded on the performance and content standard, learning competencies, and level of the learners.

Science

Continue
The earth’s surface is composed of water and
landmasses. The solid portion is made out of rocks and
minerals that could experience changes either physically
or chemically. The weathered materials are transported
by different agents from one place to another and will
settle down in a particular area

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Team 1 YELLOW
Team 2 BLUE
Team 3 GREEN
Team 4 red
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Any naturally occurring solid mass or
aggregate of minerals
HINT:
S K O R C
ANSWER:
ROCKS
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Form when magma (molten rock) cools and
cyrstallizes
HINT:
E I G N O S U
ANSWER:
IGNEOUS
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It is a solid material that is moved and
deposited in a new location
HINT:
E I M N D S E T S
ANSWER:
SEDIMENTS
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It is the breaking down or dissolving of
rocks and minerals on Earth Surface.
HINT:
A T E R W H E G I N
ANSWER:
WEATHERING
Scoreboard
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After going through this lesson, you should be able to:
1. Define weathering and distinguish between the
two main types of weathering
2. Identify the factors that affect the rate of
weathering
3. Explain how the products of weathering are
carried away by erosion and deposited elsewhere.

SPOTTHEDIFFERENCE/S
 What can you say about the image?
 Do you see any difference?

DIFFERENT TYPES OF EXOGENIC PROCESS
WEATHERING
EROSION
MASS MOVEMENT
DEPOSITION

-is the process of
disintegration (physical) and
decomposition ( chemical) of
rocks; breaking down of
rocks into smaller particles

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Bollworms are among the most damaging pests in cotton cultivation, affecting the bolls where the cotton fibers are formed. There are several species of bollworms, each capable of causing significant yield loss and quality degradation if not effectively managed. Here’s a detailed look at the primary bollworm species affecting cotton: Cotton Bollworm (Helicoverpa armigera): Also known as the corn earworm or the Old World bollworm, this pest is found in many regions around the world. It is highly polyphagous (feeds on many different plants) and poses a threat not only to cotton but also to maize, tomatoes, and legumes. The larvae bore into the cotton bolls, feeding on the developing seeds and fibers, which can lead to boll rot. Pink Bollworm (Pectinophora gossypiella): A significant pest of cotton, the pink bollworm larvae infest the cotton bolls, feeding on the seeds and lint. This can severely damage or destroy the bolls. In regions where pink bollworms are prevalent, they have been a major driver for the adoption of genetically engineered Bt cotton, which expresses a bacterium gene toxic to certain insects. Tobacco Budworm (Heliothis virescens): Closely related to the cotton bollworm, the tobacco budworm primarily attacks tobacco but is also a common pest in cotton. It primarily damages the flowers and bolls of the cotton plant. Differentiating between the tobacco budworm and the cotton bollworm based on appearance can be challenging, but it is crucial for effective management. American Bollworm (Helicoverpa zea): Known in some regions as the corn earworm, it is similar in behavior to Helicoverpa armigera and poses a threat to a variety of crops, including cotton. The larvae attack the cotton bolls, leading to direct damage to the cotton lint and seeds. Management Strategies: Cultural Controls: Crop rotation, destruction of crop residues, and deep plowing can help break the pest’s life cycle. Timing of planting can also be adjusted to avoid peak pest infestation. Biological Controls: Natural enemies like Trichogramma wasps, which parasitize bollworm eggs, and predators such as lacewings and ladybugs can be encouraged. Bacillus thuringiensis (Bt) products can also be sprayed, which are particularly effective against young larvae. Chemical Controls: Insecticides may be required when infestation levels exceed economic thresholds. However, resistance management must be considered, alternating modes of action to avoid developing resistance. Genetic Approaches: Bt cotton, genetically modified to express Bacillus thuringiensis toxin, has been highly effective in controlling bollworms and has dramatically reduced the reliance on chemical insecticides. Monitoring and Scouting: Regular field scouting and using pheromone traps to monitor adult populations can help in timely and targeted application of control measures. The effective management of bollworms often requires an integrated approach

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Earth Science W2.pptx

1. Start Game

2. Continue The earth’s surface is composed of water and landmasses. The solid portion is made out of rocks and minerals that could experience changes either physically or chemically. The weathered materials are transported by different agents from one place to another and will settle down in a particular area

3. First Jumble Return to Jumble Start/Stop 0 + 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 + 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 + 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 + 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 Team 1 YELLOW Team 2 BLUE Team 3 GREEN Team 4 red + + + +

4. Any naturally occurring solid mass or aggregate of minerals HINT: S K O R C ANSWER: ROCKS Scoreboard Show Answer Next Jumble 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 10 Start Timer

5. Form when magma (molten rock) cools and cyrstallizes HINT: E I G N O S U ANSWER: IGNEOUS Scoreboard Show Answer Next Jumble 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 10 Start Timer

6. It is a solid material that is moved and deposited in a new location HINT: E I M N D S E T S ANSWER: SEDIMENTS Scoreboard Show Answer Next Jumble 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 10 Start Timer

7. It is the breaking down or dissolving of rocks and minerals on Earth Surface. HINT: A T E R W H E G I N ANSWER: WEATHERING Scoreboard Show Answer Next Jumble 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 10 Start Timer

8. Who Won?

9. After going through this lesson, you should be able to: 1. Define weathering and distinguish between the two main types of weathering 2. Identify the factors that affect the rate of weathering 3. Explain how the products of weathering are carried away by erosion and deposited elsewhere.

10.

11. SPOTTHEDIFFERENCE/S  What can you say about the image?  Do you see any difference?

12. DIFFERENT TYPES OF EXOGENIC PROCESS WEATHERING EROSION MASS MOVEMENT DEPOSITION

13. -is the process of disintegration (physical) and decomposition ( chemical) of rocks; breaking down of rocks into smaller particles

Earth Science W2.pptx

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