8th Grade Science Questions Answers

Importance of 8th Grade Science Questions Answers

Teachers should create such an environment in their class where good challenging questions are asked and where students’ views are respected and they are appreciated. If they fear about their behaviour or if they feel that their views will not be respected then the students will not ask questions. Inviting students to ask questions encourages them to express their curiosity. Ask them to think differently about your learning, which helps you understand their attitudes. Science subject is really a filled with curiosity. Teachers must adopt such method in their teaching method so that students keep interested in science.

“Science is like a sharp knife that is in our hands. Either you can use it in your daily life by cutting vegetable / fruit. Or, after killing somebody else, living in a jail can feel sorry for the murder. Science is neither good nor bad. After us using it, the effects of science are called good and bad.”

Science Fair Questions for 8th Grade

For the students of 8th grade, the subject of science is equally important as any other subject matter. 8Th grade students are required to know the needs of science, how science contributes to our daily routine, Along with this, we also prepare for a high-level competition. By creating curiosity in the 8th grade student, we can make learning easier and then we will find that our work is getting easier. At elementary level, children do not seem to need more equipment to purchase science and related concepts, tools and materials to develop an understanding of theoretical facts, but children need to work with the material available in the environment.

List of Important 8th Grade Science Questions

Qus: In the following which is the basic unit of life?
A. Organelle
B. Organ
C. Cell
D. Tissue
Ans: Cell

Qus: When tectonic plates slide against each other, which of the following may result?
A. Earthquake
B. Constructive plate margin
C. Destructive plate margin
D. Volcano
Ans: Earthquake

Qus: If it takes 10 seconds for ball dropped from a plane to hit the ground, which is its velocity just before it hits?
A. 0 m/s
B. 100 m/s
C. 10 m/s
D. 1 m/s
Ans: 100 m/s

Qus: A red ball is red because it –
A. Only reflects red light
B. Only absorbs red light
C. Reflects all white light
D. Absorbs all white light
Ans: Only reflects red light

Qus: The Earth’s water cycle is powered by whom?
A. The Sun
B. The wind
C. Radioactive decay
D. The energy of the Earth’s rotation
Ans: The Sun

Qus: Which is an example of a physical change?
A. Cooking an egg
B. Burning wood
C. Boiling water
D. Tarnishing silver
Ans: Boiling water

Qus: A disease Kwashiorkor is caused by deficiency of?
A. Carbohydrates
B. Vitamins
C. Proteins
D. Fats
Ans: Proteins

8th Grade Science Test Questions and Answers

Qus: Compounds which are needed in very small amount but their deficiency lead to scurvy and rickets are
A. Proteins
B. Carbohydrates
C. Vitamins
D. Fats
Ans: Vitamins

Qus: Energy which is stored in food that we eat is only released in cells of body by process of?
A. Digestion
B. Respiration
C. Excretion
D. Elimination
Ans: Respiration

Qus: What Vultures and Hyenas are?
A. Herbivores
B. Carnivores
C. Scavengers
D. Omnivores
Ans: Scavengers

Qus: Wide variety of living things is called?
A. Diversity
B. Biodiversity
C. Habitat
D. Population
Ans: Biodiversity

Qus: Which type of star is sun?
A. Red giant
B. Red Supergiant
C. Supernova
D. None of these
Ans: Red giant

Science Project Questions for 8th Grade

Qus: Who invented telescope?
A. Galleli Gallelio
B. Isaac newton
C. james Watt
D. None of these
Ans: Galleli Gallelio

Qus: In which ocen does the ‘Mariana Trench’ is located?
A. Atlantic ocean
B. Pacific ocean
C. Indian ocean
D. None of these
Ans: Pacific ocean

Qus: What harm can be caused by loud sound?
A. Sight
B. Skin
C. Hearing
D. Brain
Ans: Hearing

Qus: What is the number of vibrations in each other?
A. Frequency
B. Infrasound
C. Pitch
D. Amplitude
Ans: Frequency

Qus: Sound having frequencies above 20000Hz are called?
A. Ultrasound
B. Mega sound
C. Micro sound
D. Infrasound
Ans: Ultrasound

Qus: In the following which is the basic unit of life?
A. Loudness
B. Infrasound
C. Amplitude
D. Pitch
Ans: Pitch

Science Fair Questions 8th Grade

Qus: Sound travels at speed of 1482m/s in-
A. Water
B. Steel
C. Stone
D. Air
Ans: Water

Qus: By which name unwanted sounds are called?
A. Fruitful
B. Healthy
C. Noises
D. Pleasant
Ans: Noises

Qus: What is the distance from one peak to another or any other wave?
A. Frequency
B. Amplitude
C. Wave length
D. All of them
Ans: Wave length

Qus: The earth gets most of its light from?
A. Sun
B. Moon
C. Star
D. Other Planets
Ans: Sun

Qus: Which of these is considered a gaseous planet?
A. Earth
B. Neptune
C. Pluto
D. Moon
Ans: Neptune

Qus: Which type of rock would you most likely find buried deep in the Earth?
A. Sedimentary rock
B. granite
C. Metamorphic rock
D. Igneous rock
Ans: Metamorphic rock

8th Grade Science fair Questions

Qus: Which of the following travels through space and does not fall to Earth?
A. Meteorite
B. Meteor
C. Meteoroid
D. None of the above
Ans: Meteoroid

Qus: Which of the following is not a member of the solar system?
A. A comet
B. A constellation
C. A satellite
D. An asteroid
Ans: A constellation

Qus: Which of the following is not a planet of the sun?
A. Earth
B. Sirius
C. Mercury
D. Saturn
Ans: Sirius

Qus: What is the SI base for time?
A. Kelvin
B. Second
C. kilogram
D. Mole
Ans: Second

Qus: What is the freezing and boiling point in°C?
A. Freezing – 32°C & boiling – 212°C
B. freezing – 273 C & boiling – 373 C
C. Freezing – 0°C & boiling – 100°C
D. Freezing – 50°C & boiling – 10°C
Ans: Freezing – 0°C & boiling – 100°C

Qus: What is the acceleration of gravity “g”?
A. 6.6 m/s²
B. 8.8 m/s²
C. 9.8 m/s²
D. 4.8 m/s²
Ans: 9.8 m/s²

Qus: What is the metric unit for power?
A. Watt
B. Joule
C. Kelvin
D. None of these
Ans: Watt

8th Grade Science Questions and Answers

Qus: Which is an example of a semiconductor?
A. Silicon
B. Plastic
C. Rubber
D. Wood
Ans: Silicon

Qus: All semimetals are solids at room temperature, however nonmetals tend to be?
A. Melting
B. Liquids
C. Gases
D. Decaying
Ans: Gases

Qus: Name the cells that conduct messages?
A. Nerve cells
B. Plasma
C. Epithelium cells
D. Striated musceles
Ans: Nerve cells

Qus: Which of them is found only in mammals?
A. Scales
B. Milk producing glands
C. Three chambered heart
D. Fur
Ans: Milk producing glands

Qus: What is the basic function of the large leaves?
A. To absorb carbon di oxide
B. To provide shade
C. To gather light
D. To absorb oxygen
Ans: To gather light

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