Worksheet Solutions: The Wonderful World of Science

Multiple Choice Questions (MCQs)

Q1: What drives humans to explore and ask questions from a young age? 
(a) Necessity
(b) Curiosity
(c) Education
(d) Environment
Ans: (b)

Q2: What does the scientific method help us to do? 
(a) Spend more time outdoors
(b) Find reliable answers and understand the world better
(c) Avoid asking questions
(d) Make quick decisions
Ans: (b)

Q3: What is metamorphosis? 
(a) A plant growing towards the light
(b) A caterpillar turning into a butterfly
(c) Water boiling to become steam
(d) Seeds sprouting into plants
Ans: (b)

Q4: At what temperature does water boil? 
(a) 0°C
(b) 50°C
(c) 100°C
(d) 200°C
Ans: (c)

Q5: Why do plants grow towards the light? 
(a) To escape darkness
(b) To get more sunlight for photosynthesis
(c) To find more water
(d) To produce oxygen
Ans: (b)

Fill in the Blanks

Q1: Science involves making observations, asking questions, making guesses (________), doing experiments, and figuring out the results.
Ans: hypotheses

Q2: Stars shine because of reactions happening ________ them.
Ans: inside

Q3: A seed needs water, sunlight, and ________ from the soil to grow.
Ans: nutrients

Q4: Water can be solid (ice), liquid (water), or gas (________).
Ans: steam

Q5: The scientific method is a ________ process that scientists use to find answers to questions and solve problems.
Ans: step-by-step

True or False

Q1: The scientific method involves observation, questioning, hypothesizing, experimenting, analyzing, and concluding.
Ans: True

Q2: A caterpillar turning into a butterfly is an example of metamorphosis.
Ans: True

Q3: Water boils at 0°C and freezes at 100°C.
Ans: False

Q4: Curiosity is not important in science.
Ans: False

Q5: Recycling involves separating materials like paper, plastic, and metal so they can be reused.
Ans: True

Match the Following

Ans: 
1 – e
2 – d
3 – b
4 – a
5 – c

Answer in One Word

Q1: What is the process called when a caterpillar turns into a butterfly?
Ans: Metamorphosis

Q2: What temperature does water boil at?
Ans: 100°C

Q3: What drives scientific discoveries?
Ans: Curiosity

Q4: What is necessary for a seed to grow into a plant besides water and sunlight?
Ans: Nutrients

Q5: What method do scientists use to find reliable answers and solve problems?
Ans: Scientific Method