《恐龙世界》 课件(共20张PPT)人美版 美术三年级下册

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名称 《恐龙世界》 课件(共20张PPT)人美版 美术三年级下册
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资源类型 教案
版本资源 人美版
科目 美术
更新时间 2023-05-24 14:23:13

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(共20张PPT)
千奇百怪的漫长旅行
寻找大恐龙
当我们穿过一片神秘的森林
CONTENTS
01
探索·发现
02
搜寻·想象
01
探索·发现
Exploration
01
回到恐龙时代我们会遇到哪些事物?
遇 见 各 种 奇 怪 的 植 物
各 种 动 物
鸮鹦鹉(Strigops habroptila)
恒河鳄
(Gavialis gangeticus)
各 种 ?
02
搜寻·想象
Imagine
02
寻找恐龙的足迹
野外搜寻
环境勘探
现场挖掘
02
恐龙是怎么灭绝的?
恐龙化石有什么特点?
它们会动吗?
02
I love you more than I've ever loved any woman. And I've waited longer for you than I've waited for any woman.
I love you more than I've ever loved any woman. And I've waited longer for you than I've waited for any woman.
让我们来仔细观察它们的样子?
THANK YOU
END
让我们一起来寻找大恐龙吧


⊙99


R.RO
SALTROCK
3A.MOULDS:If the organic rest (here an amonite shell)is dissolved or decomposes,can leave
a hole in the substrate.If that hole is filled with a different material and.Thus,we find a mould
from the outside of the creature,and a negative in the substrate.
1.An organism
(animal,plant,fungus...)
dies,for example on the
3B.PERMINERALIZATION:Water enters into the remains and load
t into its holes
s,filling them and
g m
ulds.The
bank of a river...
salts dissolved in water can also crystallize in the fossil,preserving
details of the internal organs and even cellular level as well
2...and his remains are covered
by sediments.thus,the body is not
eaten or disgregated.
3.when the body is buried,
3C.BACTERIAL ACTION:
they happen different biological,
During descomposition the,
bacterias can leave a carbonated
physics and chemical process
dark trail,preserving the
that preserve totally or partially
external form of soft tissue
the remains
4.These and other similar processes
allow the preservation of the remains
of beings extinct million years ago,
and even indirect evidence as
tracks or feces.