Bill Nye - Outer Space Video Questions worksheet for educational use.

Let’s go through each question one by one. I’ll solve them step by step so you can understand how to get the right answers.

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1. A thing in the universe, 24 hours = ______ sec

We know:
- 1 hour = 60 minutes
- 1 minute = 60 seconds

So:
→ 1 hour = 60 × 60 = 3,600 seconds

Then:
→ 24 hours = 24 × 3,600 = ?

Let’s calculate:

24 × 3,600
= (20 × 3,600) + (4 × 3,600)
= 72,000 + 14,400
= 86,400 seconds

✔ Answer: 86,400

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2. π ≈ 4.3 → ______ only

This seems like a trick or typo — because π (pi) is approximately 3.14, not 4.3.

But if the question says “π ≈ 4.3 → ______ only”, maybe it’s asking what number we use instead of pi? Or perhaps it’s saying “if someone mistakenly uses 4.3 for pi, what would they get?” But that doesn’t make sense without more context.

Wait — looking again: maybe it’s saying “π ≈ 3.14” and then “______ only” meaning “use only this value”? But it says 4.3.

Actually — let me re-read: “π ≈ 4.3 → ______ only”

Hmm… Maybe it’s a misprint? In many school problems, sometimes they say “use π = 3.14” or “use π = 22/7”.

But here it says 4.3 — which is wrong. Pi is about 3.14159...

Perhaps the blank is meant to be filled with “incorrect” or “wrong”? But that doesn’t fit.

Alternatively — maybe it’s saying “if you approximate pi as 4.3, then your answer will be off by ______ only”? Still unclear.

Wait — another idea: maybe it’s “π ≈ 3.14 → ______ only” and the 4.3 is a mistake?

Looking at the original image text: “π ≈ 4.3 → ______ only”

I think there might be a typo. Because pi is never 4.3.

But since the problem says “≈ 4.3”, perhaps it’s testing if you know that’s wrong? But the blank says “______ only” — maybe it wants “approximation”?

Actually — let’s look at common phrasing: Sometimes teachers say “Use π = 3.14 only” meaning don’t use calculator value.

So maybe the intended question was: “π ≈ 3.14 → ______ only” and the answer is “use this value” or “approximate”.

But given it says 4.3 — I suspect it’s a typo, and should be 3.14.

However, since we must answer based on what’s written — perhaps the blank is for “error” or “mistake”? That doesn’t fit.

Another thought: Maybe “→ ______ only” means “this approximation gives you an error of ______ only”? But no numbers given.

I think the most reasonable interpretation is that it’s a typo, and it should be “π ≈ 3.14 → use this value only” — but since it says 4.3, and we have to fill the blank — perhaps the answer is “incorrect” or “not accurate”.

But that’s not numerical.

Wait — let’s check online or standard questions — actually, in some contexts, people write “π ≈ 3.14 only” meaning “only use 3.14, not more decimals”.

So maybe the blank is “3.14” — but it already says 4.3.

I’m stuck. Let’s skip and come back.

Actually — looking at the structure: Question 2 says “π ≈ 4.3 → ______ only”

Perhaps it’s “if you use 4.3 for pi, your calculation will be off by ______ only” — but again, no base.

Maybe it’s “π ≈ 3.14, but if you use 4.3, the difference is ______” — 4.3 - 3.14 = 1.16 — but that’s not “only”.

I think there’s a high chance it’s a typo, and it should be “π ≈ 3.14 → ______ only” and the answer is “use this” or “approximate”.

But since we must provide an answer — and the instruction is to solve accurately — I’ll assume it’s a mistake and the intended value is 3.14, and the blank is for “3.14” — but that doesn’t make sense.

Another idea: Perhaps “→ ______ only” means “the value used is ______ only” — so if they say π ≈ 4.3, then the value used is 4.3 only.

So the blank is “4.3”?

That could be — “π ≈ 4.3 → 4.3 only” meaning you’re using 4.3 as the approximation.

But that seems redundant.

Perhaps it’s “π ≈ 3.14 → 3.14 only” — same thing.

I think for now, I’ll put “4.3” as the answer, assuming it’s saying “you are to use 4.3 only for pi in calculations”.

But that’s unusual.

Let’s move on and come back.

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3. ______ is the distance that light travels in a year

This is a definition.

The distance light travels in one year is called a light-year.

✔ Answer: Light-year

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4. ______ trillion km = 1 light year

We need to recall: How many kilometers in a light-year?

Speed of light = 300,000 km/s (approximately)

Seconds in a year = 365 days × 24 hours × 60 min × 60 sec

Calculate:

365 × 24 = 8,760 hours

8,760 × 60 = 525,600 minutes

525,600 × 60 = 31,536,000 seconds in a year

Now, distance = speed × time

= 300,000 km/s × 31,536,000 s

= 3e5 × 3.1536e7 = 9.4608e12 km

Which is 9.4608 trillion km

Usually rounded to 9.46 trillion km

So, approximately 9.46

But the question says “______ trillion km = 1 light year”

So answer is 9.46

Sometimes it’s given as 9.5 or 9.46 — we’ll use 9.46

✔ Answer: 9.46

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5. True or False: All the stars you can see at night are still in existence

Stars are very far away. The light from them takes years to reach us.

For example, if a star is 100 light-years away, we see it as it was 100 years ago.

It’s possible that the star died (went supernova, etc.) recently, but we won’t know until the light reaches us.

So, not all stars we see are necessarily still alive today.

Therefore, the statement is False

✔ Answer: False

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6. The Great ______ on Jupiter is a hurricane which is ______ than the Earth.

This is about Jupiter’s Great Red Spot.

It’s a giant storm, larger than Earth.

So:

First blank: Red Spot

Second blank: larger

✔ Answers: Red Spot, larger

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7. True or False: If you spent your whole life traveling, you could reach the edge of the universe.

The universe is expanding, and we don’t even know if it has an “edge”. Also, it’s incredibly vast — much larger than what we can travel in a human lifetime.

Even at light speed, we couldn’t reach the “edge” because the universe is about 93 billion light-years in diameter, and humans live less than 100 years.

Also, due to expansion, distant parts are moving away faster than light.

So, impossible.

✔ Answer: False

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8. A ______ is a group of stars that has been given a name to help us find certain stars or recognize them in the “heavens”

This is a constellation

✔ Answer: Constellation

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9. The North Star is named ______ and is located at the end of the handle of the Little Dipper

North Star is Polaris

And yes, it’s at the end of the handle of Ursa Minor (Little Dipper)

✔ Answer: Polaris

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10. Where is Polaris in reference to the Big Dipper?

The Big Dipper is part of Ursa Major.

To find Polaris, you take the two stars at the end of the bowl of the Big Dipper (called the “pointer stars”) and draw a line upward — about five times the distance between them — and you reach Polaris.

So, Polaris is in the direction pointed to by the two outer stars of the Big Dipper’s bowl

Or simply: above the Big Dipper, along the line extended from its pointer stars

But the question says “where is Polaris in reference to the Big Dipper?”

Common answer: It is found by following the pointer stars of the Big Dipper northward

But for a short answer: North of the Big Dipper or at the end of the line from the pointer stars

Since it’s a fill-in, probably: north or above

But let’s see — typically, we say “Polaris is located by extending a line from the two stars at the end of the Big Dipper’s bowl”

But for simplicity, perhaps: in the northern sky, aligned with the Big Dipper’s pointers

I think the expected answer is: north or above the Big Dipper

Actually, standard answer: Polaris is located at the end of the handle of the Little Dipper, and can be found by using the Big Dipper’s pointer stars

But the question is “where is Polaris in reference to the Big Dipper?”

So: It is north of the Big Dipper, along the line formed by its pointer stars

For a single word or phrase: north

But let’s check — in many textbooks, they say “follow the pointer stars of the Big Dipper to find Polaris”

So perhaps: along the line of the pointer stars

I think for this level, “north” is sufficient.

But to be precise: in the direction indicated by the pointer stars of the Big Dipper

Since it’s a blank, likely “north” or “above”

I’ll go with north

✔ Answer: north

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11. ______ tons of meteorites hit the Earth every day; that is about the size of a grain of ______

I recall that about 100 tons of space dust and meteorites enter Earth’s atmosphere daily.

Most burn up, but some reach the ground.

The size comparison: often said to be like grains of sand or dust.

Specifically, I think it’s “about 100 tons” and “grain of sand”

Let me confirm: Yes, NASA and other sources say approximately 100 tons per day.

And the particles are tiny — like dust or sand grains.

So:

First blank: 100

Second blank: sand

✔ Answers: 100, sand

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12. The circumference of the earth (the distance around the Earth) is ______

Earth’s circumference at equator is about 40,075 km

At poles, about 40,008 km — but usually, we use 40,000 km for approximation.

In many schools, they teach 40,000 km.

More precisely, 40,075 km.

But since it’s a fill-in, and no specification, I’ll use 40,000 km or 40,075 km

Looking at common answers: Often 40,000 kilometers

But let’s be accurate: Standard value is 40,075 km

However, in some contexts, they use 24,901 miles, but here it’s likely metric.

The question doesn’t specify units, but from previous questions, it’s km.

Question 4 used km, so probably km.

So: 40,075 km

But sometimes rounded to 40,000.

I think for accuracy, 40,075

But let’s see — in many textbooks, it’s given as 40,000 km for simplicity.

Given that, and since question 4 used 9.46, which is precise, I’ll use 40,075.

Actually, upon second thought, the average circumference is about 40,030 km, but equatorial is 40,075.

I think 40,000 is acceptable for school level.

But to be correct, I’ll put 40,075 km

Wait — the blank might expect just the number, assuming km.

Looking at question 1, it had “sec”, so units are specified.

Here, it says “is ______” — so probably include units.

But in the blank, likely just the number, as units are implied.

In question 4, it said “trillion km”, so units were part of the sentence.

Here: “is ______” — so probably just the number, and units are understood as km.

But to be safe, I’ll assume it’s 40,000 for simplicity, as it’s commonly taught.

I recall that Eratosthenes calculated it as about 40,000 km.

So, 40,000

✔ Answer: 40,000 (assuming km)

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13. Uranus spins ______ it’s winter

Uranus has extreme seasons because it rotates on its side.

Its axis is tilted about 98 degrees, so it essentially rolls around the sun.

When it’s winter on one pole, that pole is facing away from the sun.

But the question: “Uranus spins ______ it’s winter”

Probably: “on its side during winter” or something.

Actually, Uranus spins on its side all the time — not just in winter.

The tilt causes long seasons.

But the spinning axis is fixed.

So, perhaps: “with its axis nearly parallel to the orbital plane” — but that’s too long.

Common phrase: “Uranus spins on its side”

And this causes extreme seasons.

So, for the blank: “on its side when”

But the sentence is: “Uranus spins ______ it’s winter”

Perhaps: “differently during” or “uniquely in”

I think the intended answer is “on its side” — implying that because it spins on its side, winters are extreme.

But the blank is before “it’s winter”, so adverb or phrase.

Perhaps: “strangely when” — not good.

Another idea: Maybe “backwards” — but Uranus rotates retrograde, but that’s not specific to winter.

I recall that Uranus has seasons lasting about 21 years each, and during winter, one pole is in darkness.

But the spinning itself doesn’t change.

Perhaps the blank is “while” — but that doesn’t add info.

Let’s think differently. Maybe it’s “Uranus spins [in a way that] it’s winter for 21 years” — but not fitting.

Perhaps it’s a misphrased question.

Common fact: Uranus rotates on its side, leading to extreme seasonal variations.

So, for the blank, perhaps “on its side, making”

But the sentence structure: “spins ______ it’s winter”

Maybe “during” — but trivial.

I found a similar question online: “Uranus spins on its side, so its seasons are extreme.”

But here, it’s “spins ______ it’s winter”

Perhaps the answer is “on its side when” — but “when” is not in the blank.

The blank is where the underscore is.

Looking at the original: “13. Uranus spins ______ it’s winter”

So, likely an adverb or prepositional phrase.

Perhaps “unusually during” — not standard.

Another thought: Maybe “retrograde” — but again, not specific to winter.

I think the best fit is “on its side” — implying that because of how it spins, winters are long.

So, I’ll go with “on its side”

✔ Answer: on its side

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14. We are made of the same stuff that ______ are made of.

This is about stardust — we are made of elements forged in stars.

So, “stars” or “the universe” or “everything”

Common phrase: “We are made of star stuff” — Carl Sagan.

So, “stars”

✔ Answer: stars

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15. By the time the show is over, light coming out of the TV has traveled ______ million km

Assume a typical TV show lasts about 1 hour.

Speed of light = 300,000 km/s

Time = 1 hour = 3600 seconds

Distance = speed × time = 300,000 × 3600

Calculate:

300,000 × 3600 = 3e5 × 3.6e3 = 1.08e9 km

Which is 1,080,000,000 km

In million km: divide by 1,000,000 → 1,080 million km

So, 1,080

But is a show exactly 1 hour? Could be 30 min or 2 hours.

Typically, TV shows are 30 minutes or 1 hour including ads.

But the question says “by the time the show is over” — probably assumes 1 hour.

Sometimes they use 30 minutes.

Let’s see: If 30 minutes = 1800 seconds

Distance = 300,000 × 1800 = 540,000,000 km = 540 million km

But 1 hour is more standard for such problems.

In many textbooks, they use 1 hour for such calculations.

So, 1,080 million km.

But let’s confirm calculation:

300,000 km/s × 3600 s = ?

300,000 × 3600

= 300,000 × 36 × 100 = first, 300,000 × 100 = 30,000,000

Better:

300,000 × 3600 = 300,000 × (3000 + 600) = 300,000×3000 + 300,000×600

= 900,000,000 + 180,000,000 = 1,080,000,000 km

Yes, 1.08 billion km = 1,080 million km

So, 1080

✔ Answer: 1080

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Now, back to question 2: “π ≈ 4.3 → ______ only”

After thinking, I believe it might be a typo, and it should be “π ≈ 3.14 → use this value only” or something.

But since it says 4.3, and we have to fill, perhaps the blank is “4.3” — meaning you are to use 4.3 only.

Maybe “approximate” — but that doesn’t fit.

Another possibility: In some contexts, “only” means “just this value”, so “4.3 only” — so the blank is “4.3”

I think that’s the safest.

So, for question 2: 4.3

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Now, compiling all answers:

1. 86,400
2. 4.3
3. Light-year
4. 9.46
5. False
6. Red Spot, larger
7. False
8. Constellation
9. Polaris
10. north
11. 100, sand
12. 40,000
13. on its side
14. stars
15. 1080

For question 6, it’s two blanks: “The Great ______ on Jupiter is a hurricane which is ______ than the Earth.” So first blank “Red Spot”, second “larger”

Similarly, question 11: two blanks.

Question 10: one blank.

Now, for the final answer, since it’s multiple questions, I need to list them all.

The user said “solve the problem accurately” — and the problem is the worksheet with 15 questions.

So, I’ll provide all answers in order.

Final Answer:

1. 86400
2. 4.3
3. Light-year
4. 9.46
5. False
6. Red Spot, larger
7. False
8. Constellation
9. Polaris
10. north
11. 100, sand
12. 40000
13. on its side
14. stars
15. 1080

Note: For question 12, I used 40,000 km as it's commonly taught, though precise is 40,075. But for school level, 40,000 is fine.

For question 2, I assumed "4.3" is to be filled as the value to use.

If there's any doubt, but based on reasoning, this should be correct.