00:15
/ 25:00

Lucy
Emily
It takes the Moon 29.5 days to go all theway around Earth. But we cannot have29.5 days in a month. So February has 28days, or 29 days if it is a leap year. Therest of the months have 30 or 31 days.
The Moon goes around Earth.The time it takes for the Moonto go around the Earth iscalled a month.
The Moon goes around Earth.The time it takes for the Moonto go around the Earth iscalled a month.
It takes the Moon 29.5 days to go all theway around Earth. But we cannot have29.5 days in a month. So February has 28days, or 29 days if it is a leap year. Therest of the months have 30 or 31 days.

Lucy
Emily
00:15
/ 25:00
The Moon goes around Earth.The time it takes for the Moonto go around the Earth iscalled a month.
It takes the Moon 29.5 days to go all the
way around Earth. But we cannot have29.5 days in a month. So February has 28days, or 29 days if it is a leap year. Therest of the months have 30 or 31 days.

Lucy
Emily
其他 Qkids 学习应用
电脑端
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平板端
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移动端
家长端:管理课程安排,查看学习报告、练习活动和测试结果。


