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
VISIT Interesting website about soil types. goo.gl/QMnsG QUESTIONS 2. Do you think plants will be able to grow in clay? No, not if the soil only consists of clay.. This is because the clay can become waterlogged and it could pack too tightly around the roots. Loam is avery funny word! But this is also atype of soil. Loam is actually amixture of clay, sand and humus. Humus is organic material from plants and animals which is decomposing. Loam is fairly loose and fertile. It retains fertilisers longer than sandy soil. It is not easily blown or washed away. It is much cooler than either sand or clayey soil. Loam soil is the best type of soil for plants to grow in! QUESTIONS Loam soil is rich with humus. 7 What are the dierences between loam and sand soil? Name three things that you find in loam but you do not find in sand. Plant material, animal material, living organisms (microorganisms). Each soil type also has air and water in it, and sometimes the remains of dead organisms and very small living organisms. 114 Earth and Beyond
How do some plants live when no rain falls? We do know that many plants can live through the dry season, even though no rain falls for eight months. How do they do it? ACTIVITY: Soil holds water MATERIALS: • a spade • a large sheet of clear plastic • a few bricks INSTRUCTIONS: 1. Look at the picture below. 2. Dig ahole in the soil outside, like this. 3. Cover the hole with asheet of clear plastic and hold it down with some bricks. 4. After a short time, you see drops of water on the plastic. Dig a hole in the soil, and cover it with aclear plastic sheet. Chapter 2. Surface of the Earth 115
- Page 72 and 73: INSTRUCTIONS: Things you can use fo
- Page 74 and 75: REVISION: 1. List four dierent vehi
- Page 78 and 79: 1 Planet Earth 70 KEY QUESTIONS •
- Page 80 and 81: • The Earth spins right around in
- Page 82 and 83: 3. Was it daytime in Saudi Arabia?
- Page 84 and 85: VISIT Short video showing the sun,
- Page 86 and 87: The planets move in orbits around t
- Page 88 and 89: MATERIALS: • 100m heavy string
- Page 90 and 91: Teacher's Note Make sure to point o
- Page 92 and 93: 2 Surface of the Earth 84 KEY QUEST
- Page 94 and 95: QUESTIONS: 1. What is under the flo
- Page 96 and 97: Imagine we could cut aslice out of
- Page 98 and 99: QUESTIONS 1. If you dig ahole in th
- Page 100 and 101: Teacher's Note Iron melts at those
- Page 102 and 103: The hole will come to of the other
- Page 104 and 105: Look at the place where the water h
- Page 106 and 107: VISIT Rocks erode to form soil (vid
- Page 108 and 109: ACTIVITY: Make a model of acid wate
- Page 110 and 111: ACTIVITY: Look at dierent kinds of
- Page 112 and 113: MATERIALS: • 3 big cool drink bot
- Page 114 and 115: In the beginning, you might think t
- Page 116 and 117: The topsoil has gone from this land
- Page 118 and 119: INSTRUCTIONS: 1. Collect two tins o
- Page 120 and 121: QUESTIONS 1. Can you make pots with
- 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 170 and 171: REVISION: 1. Are animal fossils mad
VISIT<br />
Interesting website<br />
about soil types.<br />
goo.gl/QMnsG<br />
QUESTIONS<br />
2. Do you think plants will be able to grow in clay?<br />
No, not if the soil only consists of clay.. This is because<br />
the clay can become waterlogged <strong>and</strong> it could pack too<br />
tightly around the roots.<br />
Loam is avery funny word! But this is also atype of soil. Loam is<br />
actually amixture of clay, s<strong>and</strong> <strong>and</strong> humus. Humus is organic<br />
material from plants <strong>and</strong> animals which is decomposing.<br />
Loam is fairly loose <strong>and</strong> fertile. It retains fertilisers longer than<br />
s<strong>and</strong>y soil. It is not easily blown or washed away. It is much cooler<br />
than either s<strong>and</strong> or clayey soil. Loam soil is the best type of soil for<br />
plants to grow in!<br />
QUESTIONS<br />
Loam soil is rich with humus. 7<br />
What are the dierences between loam <strong>and</strong> s<strong>and</strong> soil? Name<br />
three things that you find in loam but you do not find in s<strong>and</strong>.<br />
Plant material, animal material, living organisms<br />
(microorganisms).<br />
Each soil type also has air <strong>and</strong> water in it, <strong>and</strong> sometimes the<br />
remains of dead organisms <strong>and</strong> very small living organisms.<br />
114 Earth <strong>and</strong> Beyond
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