5–8 minutes
Learn the core expressions and record in short blocks.
Name liquid water, ice and water vapour.
Start with this short core reading. Explain one reason or clue before trying the optional longer version. You can pause after any study block and continue later.
Nature, poems & explanations · Lessons 5–8
Identify the phenomenon, the explanation and the evidence. Distinguish observations from guesses and look for a limitation.
5–8 minutes
Learn the core expressions and record in short blocks.
5–10 minutes
Read one part, try the checks, then record the core dialogue.
5–10 minutes
Practise the writing focus and revisit your first-choice answers.
Try each item in a short block. Listen when needed, record when ready, and use the hints to retry. Pinyin and English can be turned off independently.
Pinyin shows how to say a word. The mark above a vowel shows its tone.
Watch the tone marks and listen for the rhythm of the whole phrase. Light syllables are short; pauses belong between meaningful groups.
Flip each card for stroke order. This lesson’s writing focus: 化 · 冰 · 汽 · 变.
水滴
shuǐ dī
drop of water
水汽
shuǐ qì
water vapour
冰
bīng
ice
变化
biàn huà
change
温度
wēn dù
temperature
观察
guān chá
observe
杯子外面有许多小水滴。
bēi zi wài miàn yǒu xǔ duō xiǎo shuǐ dī。
There are many small water droplets on the outside of the cup.
水受热以后会变成水汽。
shuǐ shòu rè yǐ hòu huì biàn chéng shuǐ qì。
Water becomes water vapour when heated.
天气很冷时,水会结成冰。
tiān qì hěn lěng shí, shuǐ huì jié chéng bīng。
Water can freeze into ice in very cold weather.
温度改变时,水的状态也会变化。
wēn dù gǎi biàn shí, shuǐ de zhuàng tài yě huì biàn huà。
When the temperature changes, the state of water can also change.
我们用温度计测量水的温度。
wǒ men yòng wēn dù jì cè liáng shuǐ de wēn dù。
We use a thermometer to measure the water temperature.
我认真观察冰慢慢融化。
wǒ rèn zhēn guān chá bīng màn màn róng huà。
I carefully observe the ice melting slowly.
小雨把冰放在盘子里观察。冰慢慢融化,盘子里出现水滴。妈妈说,这与温度的变化有关。
xiǎo yǔ bǎ bīng fàng zài pán zi lǐ guān chá。 bīng màn màn róng huà, pán zi lǐ chū xiàn shuǐ dī。 mā ma shuō, zhè yǔ wēn dù de biàn huà yǒu guān。
Xiaoyu observes ice on a plate. It melts into water droplets. Mum explains that temperature changes matter.
水还可以变成水汽。水汽看不见;我们看见的白雾里有很小的水滴。不能把白雾和水汽当成同一种样子。
shuǐ hái kě yǐ biàn chéng shuǐ qì。 shuǐ qì kàn bú jiàn; wǒ men kàn jiàn de bái wù lǐ yǒu hěn xiǎo de shuǐ dī。 bù néng bǎ bái wù hé shuǐ qì dàng chéng tóng yì zhǒng yàng zi。
Water can also become invisible vapour. Visible white mist contains tiny droplets, so mist and vapour should not be confused.
小雨记下观察到的变化,又问:“如果温度降低,水会怎样?”她想先提出问题,再寻找答案。
xiǎo yǔ jì xià guān chá dào de biàn huà, yòu wèn:“rú guǒ wēn dù jiàng dī, shuǐ huì zěn yàng?” tā xiǎng xiān tí chū wèn tí, zài xún zhǎo dá àn。
Xiaoyu records the changes and asks what happens when temperature falls. She wants to ask a question and then seek an answer.
A 你说水有不同的样子,是什么意思?
nǐ shuō shuǐ yǒu bù tóng de yàng zi, shì shén me yì si?
What do you mean by water having different forms?
B 水可以是液体,也可以变成冰或水汽。
shuǐ kě yǐ shì yè tǐ, yě kě yǐ biàn chéng bīng huò shuǐ qì。
It can be liquid, ice or water vapour.
A 水汽是不是我们看见的白雾?
shuǐ qì shì bú shì wǒ men kàn jiàn de bái wù?
Is water vapour the white mist we see?
B 不是,水汽看不见,白雾里有很小的水滴。
bú shì, shuǐ qì kàn bú jiàn, bái wù lǐ yǒu hěn xiǎo de shuǐ dī。
No. Vapour is invisible; mist contains tiny water droplets.
A 我们怎样观察变化?
wǒ men zěn yàng guān chá biàn huà?
How can we observe a change?
B 和大人一起看冰在室温下融化。
hé dà rén yì qǐ kàn bīng zài shì wēn xià róng huà。
Watch ice melt at room temperature with an adult.