Sumakses ka!
What invention is Thomas Edison most famous for?
Electric bulb
Which scientist discovered the principles of pasteurization?
Louis Pasteur
What significant contribution did Gregorio Zara make to science?
a. Invention of the first electric car
b. Discovery of insulin
c. Development of the first video phone
d. Creation of the periodic table
c. Development of the first video phone
Who invented the first practical telephone?
Alexander Graham Bell
How did the invention of the vaccine impact public health?
a. It helped prevent the outbreak of infectious diseases.
b. It increased the spread of diseases.
c. It made people more susceptible to illness.
d. It replaced doctors.
a. It helped prevent the outbreak of infectious diseases.
How did the invention of the refrigerator change everyday life?
a. It replaced cooking.
b.It increased the cost of food.
c. It allowed people to store food for longer periods.
d. It made food spoil faster.
c. It allowed people to store food for longer periods.
Which of the following is an example of a chemical change?
a. Melting ice
b. Boiling water
c. Dissolving sugar in water
d. Rusting iron
d. Rusting iron
What happens to the properties of a substance during a chemical change?
a. They remain the same
b. They become more solid
c. They only change slightly
d. They change completely
d. They change completely
What is one way that plastic pollution can harm marine life?
a. It provides food for fish.
b. Animals can mistake plastic for food and ingest it.
c. It creates habitats for sea turtles.
d. It helps to clean the oceans.
b. Animals can mistake plastic for food and ingest it.
What is a chemical change?
a. A change that can be easily reversed
b. A change in the physical state of matter
c. A change that produces new substances
d. A change that does not involve energy
c. A change that produces new substances
What is one major cause of deforestation in the Philippines?
a. Urban gardening
b. National parks
c. Illegal logging
d. Reforestation efforts
c. Illegal logging
When baking soda is mixed with vinegar, what evidence shows that a chemical change has occurred?
a. Bubbles and fizzing occur
b. The volume of the mixture decreases
c. The mixture becomes colder
d., The color of the mixture changes
a. Bubbles and fizzing occur
Which invention allowed people to communicate over long distances quickly?
Telephone
How can educating the community about waste segregation benefit the environment?
a. It confuses residents about waste disposal.
b. It helps in recycling and reduces landfill waste.
c. It increases the amount of waste produced.
d. It has no effect on waste management.
b. It helps in recycling and reduces landfill waste.
How can deforestation negatively impact the environment?
a. It increases biodiversity.
b. It provides more land for farming.
c. It reduces habitats for wildlife.
d. It improves air quality.
c. It reduces habitats for wildlife.
How can reducing plastic use benefit the environment?
a. It increases waste in landfills.
b. It makes products harder to find.
c. It decreases pollution in land and water.
d. It reduces the need for recycling.
c. It decreases pollution in land and water.
Which of the following is a benefit of recycling in the community?
a. It generates more waste.
b. It increases the cost of products.
c. It saves natural resources and reduces pollution.
d. It has no impact on the environment.
c. It saves natural resources and reduces pollution.
What scientific attitude starts with asking questions and seeking answers?
Curiosity
How can local communities use science to reduce air pollution?
a. By burning waste in open areas
b. By increasing industrial activities
c. By encouraging the use of more cars
d. By planting more trees and creating green spaces
d. By planting more trees and creating green spaces
What is the role of creativity in science?
A. To make experiments more difficult
B. To help develop new ideas and solutions
C. To distract from the main focus
D. To limit possibilities
B. To help develop new ideas and solutions
During a survey, a student talks to someone who has a very different idea about saving the environment. The student listens carefully and writes down the person's opinion without getting mad. What scientific attitude is the student showing?
a. Honesty
b. Curiousity
c. Open-mindedness
d. Creativity
c. Open-mindedness
A student team creates a poster with charts and graphs to present the results of their survey on local air quality. They explain their findings clearly to their classmates. What process skill are they demonstrating?
Communicating
Why is it important for scientists to be honest about their findings?
a. To ensure the integrity of scientific research
b. To make their work easier
c. To gain recognition
d. To impress others
a. To ensure the integrity of scientific research
A group of students is collecting different types of waste found in the schoolyard. They decide to separate the items into piles of 'plastic bottles,' 'paper scraps,' and 'food wrappers.' Which science process skill is being used?
a. Classifying
b. Inferring
c. Communicating
d. Observing
a. Classifying