Year 7 Science – Observing the Universe 1
Practise the branches of science, observations and inferences, variables, day and night, seasons, Moon phases, eclipses and the Emu in the Sky. 20 questions. 25 minutes.
A scientist studies the layers of rock in a cliff to learn how they formed. Which branch of science is this?
Which of these observations is quantitative?
Choose the word that completes the blank.
Science builds knowledge of the world and the Universe through 1, experimentation and analysis.
Blank 1: opinion · observation · imagination
What causes day and night on Earth?
Why can we see the Moon in the night sky?
Choose the word that completes each blank.
Earth spins once on its axis in about 1, and orbits the Sun once in about 2.
Blank 1: 24 hours · 12 hours · 7 days · 30 days
Blank 2: 365 days · 28 days · 52 days
Circle 2 words in the sentence below.
Click the two words that make up the measurement in this sentence.
Therodis12cmlongandshiny.
A sealed mystery box rattles when it is shaken. Which statement is an inference?
What causes the seasons on Earth?
Choose the word that completes each blank.
In an investigation, the variable the scientist measures is the 1 variable, and a variable kept the same is the 2 variable.
Blank 1: independent · controlled · dependent
Blank 2: dependent · controlled · independent
Which Bunsen burner setting gives the hottest flame?
A student measured the air temperature in the sun and in the shade. At which time was the difference between the two the biggest?
| Time | Sun (°C) | Shade (°C) |
|---|---|---|
| 9 am | 22 | 20 |
| 12 noon | 31 | 26 |
| 3 pm | 34 | 28 |
Identical cans of hot water were wrapped in different cloths. Which cloth kept the water warmest?
| Cloth colour | Water temperature after 20 minutes (°C) |
|---|---|
| White | 41 |
| Black | 33 |
| Silver | 38 |
Choose the word that completes each blank.
A thermometer reading of 25 °C is 1 data, while saying a drink feels warm is 2 data.
Blank 1: quantitative · qualitative · controlled
Blank 2: quantitative · controlled · qualitative
Which Moon phase comes straight after the waxing crescent?
Circle 1 word in the sentence below.
Click the Moon phase when a solar eclipse can happen.
fullfirst quarternewthird quarter
Choose the word or phrase that completes each blank.
Australia has summer from 1 because the southern hemisphere is tilted 2 the Sun.
Blank 1: December to February · June to August · March to May
Blank 2: away from · towards · sideways to
Choose the word or phrase that completes each blank.
During a lunar eclipse, the 1 is between the Sun and the Moon, and the Moon looks 2.
Blank 1: Moon · Mars · Earth
Blank 2: bright white · dim red-orange · completely invisible
The Emu in the Sky is a Kamilaroi and Euahlayi star picture. What forms the emu's shape?
Circle 1 word in the sentence below.
The emu seems to run along the Milky Way when it is time to collect emu eggs. Click the months when this happens.
April–MayJune–JulyDecember–February