Natural Sciences and Technology Grade 5-B ... - Thunderbolt Kids
Natural Sciences and Technology Grade 5-B ... - Thunderbolt Kids Natural Sciences and Technology Grade 5-B ... - Thunderbolt Kids
REVISION: 1. Are animal fossils made of bone? Explain what a fossil is. A fossil is stone in the shape of the bone. Substances from rock have taken the place of each little part of the bone. 2. Which type of rocks are fossils normally found in? Sedimentary rock 3. Why do you think we only find fossils in this type of rock? Sedimentary rocks can contain fossils because, unlike other rocks, they form at temperatures and pressures that do not destroy fossil remains. Dead organisms can become sediments which may, over time, become sedimentary rock. Other rock types will destroy the fossils, such as magma. 4. Fossil wood does not burn. What is the reason? Fossil wood is made of stone. 5. Some rock comes out of avolcano. It is red hot and then it cools and becomes hard. Can you find fossils in rock like this? Why? No, because the red-hot rock would burn up any bone or plant that it fell on. 6. Name two fossils that show us the kinds of living things that lived long ago in South Africa. Massospondylus, therapsids, glossopteris, etc. 7. Explain how you think fossils can help us understand what life was like long ago on Earth. Fossils give us arecord of what life was like millions of years ago. We do not know what it was like as no one was there to write it down. So, fossils give us information such as what types of plants and animals lived long ago, how these organisms have changed over time, the eect of climate change on the Earth, we can even tell what animals ate from their fossils by studying their teeth and droppings. 162 Earth and Beyond
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- Page 120 and 121: QUESTIONS 1. Can you make pots with
- Page 122 and 123: VISIT Interesting website about soi
- Page 124 and 125: QUESTIONS: 1. Are the drops on the
- Page 126 and 127: Set up the soils as you see in the
- Page 128 and 129: Which soil type do plants grow best
- Page 130 and 131: Average height grown by seedlings i
- Page 132 and 133: Answer: Crust, mantle, core. 2. Wha
- Page 134 and 135: 3 Sedimentary rocks VISIT Dierent r
- Page 136 and 137: Sediments When the sand grains coll
- Page 138 and 139: 2. Which is the oldest sediment? Th
- Page 140 and 141: Look at the layers in the sedimenta
- Page 142 and 143: This is how the mountains look now.
- Page 144 and 145: A sculpture made from limestone. 10
- Page 146 and 147: Cement is also made from shale. The
- Page 148 and 149: 4 Fossils 140 KEY QUESTIONS • Wha
- Page 150 and 151: VISIT When a T-Rex attacks! (video)
- Page 152 and 153: VISIT How are fossils formed? goo.g
- Page 154 and 155: Teacher's Note Of course, it's much
- Page 156 and 157: Teacher's Note Note that the mould
- Page 158 and 159: There was a flood and the river ros
- Page 160 and 161: A footprint which has hardened in t
- Page 162 and 163: Do you know where this is in South
- Page 164 and 165: VISIT Finding the coelacanth (video
- Page 166 and 167: I just love learning more and more
- Page 168 and 169: ACTIVITY: Thinking about the Cradle
- Page 172 and 173: 5 Notes 164 Chapter 1 Stored energy
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