REVIEWER-SCIENCE 4 (FIRST PERIODICAL EXAMINATION)

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The REVIEWER – SCIENCE 4 (First Periodical Examination) is part of Project BEE (Be Efficient and Effective), which aims to improve the Mean Percentage Score (MPS) of learners in the periodical exam through organized and systematic preparation. It is also included in Project RePlay (Rebuilding Educational e-Playground at Home), which provides home-based review support using technology and simple study guides to make it easier and more meaningful for children to understand their lessons in SCIENCE.

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Chyla Biscocho

Philippines

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REVIEWER-SCIENCE 4 (FIRST PERIODICAL EXAMINATION)


REVIEWER-SCIENCE 4 (FIRST PERIODICAL EXAMINATION)Version en ligne The REVIEWER – SCIENCE 4 (First Periodical Examination) is part of Project BEE (Be Efficient and Effective), which aims to improve the Mean Percentage Score (MPS) of learners in the periodical exam through organized and systematic preparation. It is also included in Project RePlay (Rebuilding Educational e-Playground at Home), which provides home-based review support using technology and simple study guides to make it easier and more meaningful for children to understand their lessons in SCIENCE. par Chyla Biscocho 1 Who invented the videophone in the Philippines? a Roberto del Rosario b . Gregorio Y. Zara c . Diosdado Banatao d Narciso Mosuela 2 Who invented the karaoke or "minus one"? a Roberto del Rosario b Edgardo Vazquez c Ruperta David d Dr. Fe Del Mundo 3 . If you need to invent something to heat clean water at home, which of Zara’s inventions could inspire you? a Phonograph b Steamboat c Marex X-10 d Solar-powered water heater 4 If you plan to invent something to improve land transportation, which invention by a Filipino scientist could be your reference? a Jeepney b Videophone c tesla d toyota 5 If you could be an inventor like Gregorio Zara, what would you invent and why would it be important for your community? a A drink that removes thirst instantly b A flying toy for fun c An air purifier device for urban homes d A multi-colored fashion dress 6 Which invention helps prevent mosquito-borne diseases? a Electronic mosquito repellent b Refrigerator c Fire truck d Light bulb 7 What do we call the exchange of ideas and information through symbols? a Entertainment b Communication c Agriculture d Education 8 You live in a rural area where farmers struggle to water crops. Which invention can help? a Solar water pump b Video phone c Karaoke d Laptop 9 If there were no refrigerators, what problem might people face? a Difficulty in online shopping b Difficulty in watching movies c Difficulty attending school d Difficulty storing food 10 If you could invent something to solve a community problem, which would you choose and why? a Automatic garbage separator for cleaner streets b Smart fashion outfit that changes color c Game console that runs on solar power d Automatic shoelace tier for kids 11 What is the meaning of flammability? a The ability to catch fire and burn easily b The ability to shine in the dark c The ability to be broken down by bacteria d The ability to float in water 12 What happens when baking soda is mixed with vinegar? a It turns into ice b A solid is formed c A gas is released and bubbles form d Nothing happens 13 Which best describes a biodegradable material? a Can float in water b Can burn slowly c Can be melted by heat d Can be broken down by living organisms 14 Ralph threw a banana peel into the garden soil. After a few weeks, it was gone. What caused this? a Microorganisms broke it down into simpler substances b The banana peel was eaten by animals c The banana peel burned up in the sun d The banana peel dissolved in rainwater 15 Nathalie wants to avoid using materials that harm the environment. Which is the best choice for wrapping food? a Biodegradable wax paper b Plastic cling wrap c Aluminum foil d Styrofoam container 16 Which of the following is the most environment-friendly practice at home? a Using single-use plastic bags for groceries b Throwing all waste into one garbage bag c Composting food waste and biodegradable materials d Throwing all waste into one garbage bag 17 Which of these examples shows evaporation? a . Wet clothes drying under the sun b Chocolate turning to liquid c Bread turning brown d Water turning into ice 18 Alexander was making popcorn in a pan. He saw the kernels pop and release steam. What kind of change is this? a Chemical change b Physical change only c No change d Physical and chemical change 19 Ramil mixed vinegar and baking soda. Bubbles came out and it fizzed. What happened? a . Chemical change b Evaporation c d Freezing 20 Which of the following is a physical change? a . Melting ice b Burning wood c Rusting metal d Baking cookies 21 What harmful effect may occur when too much water evaporates from lakes and rivers? a It leads to more fish b . It causes water sources to dry up c It creates more rain d It becomes cleaner 22 Why should we avoid burning plastic waste? a It releases harmful chemicals into the air b It causes fires to spread c It becomes reusable d It smells bad only 23 You see a leaking battery at home. What is the best thing to do? a Tell an adult and avoid touching it b Touch it with your hand c Use it until it stops working d Throw it in the trash 24 You are sorting trash at school. Which item should go in the plastic recycling bin? a Banana peel b Broken glass c Empty soda bottle d Used paper 25 Which situation shows proper handling of a reactive material at home? a Mixing bleach and vinegar to clean faster b Wearing gloves and using bleach in a ventilated room c . Leaving drain cleaner open on the floor d Pouring leftover ammonia down the sink 26 . If you were part of a community project, which plan would you recommend to reduce harmful material changes? a Use more chemicals for faster cleaning b . Bury plastics to hide them c Burn all waste for faster disposal d Promote recycling and educate people about chemical waste 27 Which of the following is a major type of pollution? a Air, water, and land pollution b Plastic pollution only c Noise pollution only d Urban pollution only 28 A group of students observes trash in their school garden. What should they do first? a Segregate the trash as biodegradable and non-biodegradable b Report to the barangay c Burn all the trash immediately d Ignore it 29 Which of the following is NOT a reason for deforestation? a Tree planting b Agricultural expansion c Housing projects d Logging and timber demand 30 Which situation shows a good response to pollution in the community? a Dumping waste near rivers b Segregating waste and recycling c Ignoring trash around d Burning plastics in an open area 31 What scientific attitude is shown when a person listens and accepts other people's ideas? a Open-mindedness b nventiveness c Belief d risk taking 32 Terrence tried an experiment three times and failed. He still continued until he succeeded. What scientific attitude did Paul show? a Responsibility b Objectivity c Humility d Risk-taking 33 Aljhen always reports the result of her experiments even when they go against her opinions. What attitude does she show? a Intellectual honesty b Inventiveness c Curiosity d . Responsibility 34 After seeing dark clouds and hearing thunder, what skill will help you say it will rain? a Classifying b Inferring c Predicting d . Measuring 35 Which of the following shows that a community is taking action against pollution? a Conducting clean-up drives and recycling b Throwing trash in the river c Letting garbage pile up d Ignoring dirty surroundings 36 Your class is doing a survey about water pollution. Which is a good question to ask? a What is your favorite food? b Who is your favorite celebrity? c What games do you like? d How often do you see garbage in the river? 37 If a neighbor burns plastic, what should you do? a Inform a responsible adult or barangay official b Watch from afar c Burn your own trash too d Join them 38 You notice foul smell from the river in your barangay. What is your best action? a Record your observations and report them b Do nothing because it’s not your problem c Complain loudly to your classmates d Avoid walking near the river 39 What does the word community mean in science? a A large forest b A group of animals in the wild c A place where people live and work together d A noisy classroom 40 Your teacher asked you to make a poster-slogan showing how to care for the environment. Which is the best idea? a Make a poster showing proper waste disposal with a slogan like “Clean Today, Live Tomorrow!” b Decorate the board with random colors c Draw your favorite toy d Copy a poster from the internet

REVIEWER-SCIENCE 4 (FIRST PERIODICAL EXAMINATION)

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REVIEWER-SCIENCE 4 (FIRST PERIODICAL EXAMINATION)Version en ligne

par Chyla Biscocho

Who invented the videophone in the Philippines?

Who invented the karaoke or "minus one"?

. If you need to invent something to heat clean water at home, which of Zara’s inventions could inspire you?

If you plan to invent something to improve land transportation, which invention by a Filipino scientist could be your reference?

If you could be an inventor like Gregorio Zara, what would you invent and why would it be important for your community?

Which invention helps prevent mosquito-borne diseases?

What do we call the exchange of ideas and information through symbols?

You live in a rural area where farmers struggle to water crops. Which invention can help?

If there were no refrigerators, what problem might people face?

If you could invent something to solve a community problem, which would you choose and why?

What is the meaning of flammability?

What happens when baking soda is mixed with vinegar?

Which best describes a biodegradable material?

Ralph threw a banana peel into the garden soil. After a few weeks, it was gone. What caused this?

Nathalie wants to avoid using materials that harm the environment. Which is the best choice for wrapping food?

Which of the following is the most environment-friendly practice at home?

Which of these examples shows evaporation?

Alexander was making popcorn in a pan. He saw the kernels pop and release steam. What kind of change is this?

Ramil mixed vinegar and baking soda. Bubbles came out and it fizzed. What happened?

Which of the following is a physical change?

What harmful effect may occur when too much water evaporates from lakes and rivers?

Why should we avoid burning plastic waste?

You see a leaking battery at home. What is the best thing to do?

You are sorting trash at school. Which item should go in the plastic recycling bin?

Which situation shows proper handling of a reactive material at home?

. If you were part of a community project, which plan would you recommend to reduce harmful material changes?

Which of the following is a major type of pollution?

A group of students observes trash in their school garden. What should they do first?

Which of the following is NOT a reason for deforestation?

Which situation shows a good response to pollution in the community?

What scientific attitude is shown when a person listens and accepts other people's ideas?

Terrence tried an experiment three times and failed. He still continued until he succeeded. What scientific attitude did Paul show?

Aljhen always reports the result of her experiments even when they go against her opinions. What attitude does she show?

After seeing dark clouds and hearing thunder, what skill will help you say it will rain?

Which of the following shows that a community is taking action against pollution?

Your class is doing a survey about water pollution. Which is a good question to ask?

If a neighbor burns plastic, what should you do?

You notice foul smell from the river in your barangay. What is your best action?

What does the word community mean in science?

Your teacher asked you to make a poster-slogan showing how to care for the environment. Which is the best idea?