2026年3月30日 星期一

[114]第2單元學習中英文版資料總整理


[114]Key Points Summary: Effects of Temperature Changes on Substances (Unit 2)

Unit 2: Activity 1: What factors affect material changes

Substances may change due to external factors such as air, water, and temperature, some change quickly, some slower, and remain stable after long-term action.
The speed of change in matter is faster The phenomenon of change in matter is slower For example, ice cubes turn into water, cut apples change color, chocolate becomes soft, wood burns, fresh milk spoils at room temperature, etc. For example, rocks change shape, blades or nails rust, old books or paper turn yellow, bicycles rust, etc. Exposure to the sun, rubbing hands, using electric heaters, and starting fires can generate heat and raise the temperature.
In addition to physical sensations, using a thermometer can accurately determine temperature changes
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[114]第2單元溫度變化對物質影響重點整理

單元二活動一什麼因素會影響物質變化

1.        物質受空氣、水、溫度等外在因素影響,可能會改變,有些改變快,有些則比較慢,經過長時間的作用後會維持穩定的情形。

物質變化現象的速度較快

物質變化現象的速度較慢

例如冰塊變成水、切開的蘋果變色、巧克力變軟、木材燃燒、鮮乳在室溫下變質腐壞等。

例如岩石改變形狀、刀片或鐵釘生鏽、舊書或舊紙張變黃、腳踏車生鏽等。

 

2.        晒太陽、雙手摩擦、使用電暖器、生火等方式都能產生熱,讓溫度升高。

除了透過身體的感覺外,使用溫度計可以精確的知道溫度的變化。

[114]小田園(小白菜)-302

1.播種日期:2026.3.27
2.天氣:雨

[114]小田園(小白菜)-304

1.播種日期:2026.3.26
2.天氣:晴