Science
Rocks and Soil- The Rock Cycle
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The Rock Cycle
-What changes rocks? -water freezing -heat - plant roots -pressure -time -wind -rain -rivers |
Soil - made up of broken down rock and organic material. |
Erosion
Erosion
-Erosion is ALWAYS happening- it never stops
- It flattens hills and mountains
-Water can break apart rocks
- It can damage houses and structures
- Plant roots can cause erosion
-Chemicals and pollution in the air cause erosion
-Erosion is ALWAYS happening- it never stops
- It flattens hills and mountains
-Water can break apart rocks
- It can damage houses and structures
- Plant roots can cause erosion
-Chemicals and pollution in the air cause erosion
Fossils
M10 Fossils
-Trees can turn into fossils
-It takes a LONG time to dig out a fossil- up to 200 hours
- scientist use the rock around the fossil to determine the age of the fossil
- Fossils take a long time to form- billions of years
- fossilized means turned into a fossil
- Fossils are parts of animals or plants turned into stone
-Scientist use picks and brushes to dig fossils out.
-birds are related to dinosaurs
-there are different types of fossils all over the world
- Fossils are being made all the time
-fossils are evidence of living things
-fossils can be extinct animals
-Trees can turn into fossils
-It takes a LONG time to dig out a fossil- up to 200 hours
- scientist use the rock around the fossil to determine the age of the fossil
- Fossils take a long time to form- billions of years
- fossilized means turned into a fossil
- Fossils are parts of animals or plants turned into stone
-Scientist use picks and brushes to dig fossils out.
-birds are related to dinosaurs
-there are different types of fossils all over the world
- Fossils are being made all the time
-fossils are evidence of living things
-fossils can be extinct animals
Tractors at work
May 28 Soil
The difference between dirt and soil is soil has decomposing organic material- dead plants and animals or poo, or compost- rich organic material.
The other things in soil are:
1. Sand- largest particle found in soil. Sand helps the water flow through the soil. Sand does not have any nutrients.
2. Silt- powdery when dry, and slippery when wet- mud.
3. Clay- holds many nutrients. Too much clay makes the soil too heavy for plants.
Best soil is LOAM- a mix of sand, silt, and clay.
10-30% clay
30-50% silt
25-50% sand
Soil experiment
loamy soil, sandy soil, clay soil, compost
Sample 1- Description: _dry, brown, soft, fine grains, not slippery, messy- stayed on hands
I think this is loamy soil
Sample 2- Description: moist, chunky, dark and rich looking, smelled like a healthy garden, black or very dark brown,
I think this is compost
Sample 3- Description: soft, rocky, smooth, slipped through my fingers, light brown, like pudding when wet.
I think this is sandy soil
Sample 4- Description: felt rocky, smooth when wet
I think this is clay soil
The difference between dirt and soil is soil has decomposing organic material- dead plants and animals or poo, or compost- rich organic material.
The other things in soil are:
1. Sand- largest particle found in soil. Sand helps the water flow through the soil. Sand does not have any nutrients.
2. Silt- powdery when dry, and slippery when wet- mud.
3. Clay- holds many nutrients. Too much clay makes the soil too heavy for plants.
Best soil is LOAM- a mix of sand, silt, and clay.
10-30% clay
30-50% silt
25-50% sand
Soil experiment
loamy soil, sandy soil, clay soil, compost
Sample 1- Description: _dry, brown, soft, fine grains, not slippery, messy- stayed on hands
I think this is loamy soil
Sample 2- Description: moist, chunky, dark and rich looking, smelled like a healthy garden, black or very dark brown,
I think this is compost
Sample 3- Description: soft, rocky, smooth, slipped through my fingers, light brown, like pudding when wet.
I think this is sandy soil
Sample 4- Description: felt rocky, smooth when wet
I think this is clay soil
M30 10 Farming Questions
1. What is a farm?
-raise animals or grow plants for food to sell
-agriculture
-some animals we use products like milk or eggs- other animals we eat the actual animal
All farms have land.
Many different kinds of farms- fish, deer, flowers.
Equipment is very important.
2. What can grow on an acre?
-vegetables, all sorts of crops
An acre is about as big as a football field.
Most farmers have many acres.
3. What crop is grown the most (in Saskatchewan)?
Wheat, barley, canola, flax,oats
In the united states the biggest crop is corn
4. How much water does it take to make a crop grow?
Irrigation- a way farmers put water on a crop. In Sask. most farmers rely on rain.
5. What is soil?
Mineral parts of soil- sand, silt and clay. To this we add organic material- dead plants.
6. What is a tractor used for?
Seeding and Harvest- bailing, pulling other kinds of equipment- seeders and sprayers, grain carts.
Not built for speed, but pulling power.
Some are comfortable with AC and cushy seats.
7. What do kids do on Farms?
-explore, cutting the grass, run the bobcat- moving bails around, loading and unloading chickens, help fix things, run and get things, drive quad to pull equipment around, make and bring food, help in the house
8. Where does milk come from?
Cows, goat, sheep
Each cow can make 10 gallons of milk a day.
9. Why do farmers harvest trees?
1. What is a farm?
-raise animals or grow plants for food to sell
-agriculture
-some animals we use products like milk or eggs- other animals we eat the actual animal
All farms have land.
Many different kinds of farms- fish, deer, flowers.
Equipment is very important.
2. What can grow on an acre?
-vegetables, all sorts of crops
An acre is about as big as a football field.
Most farmers have many acres.
3. What crop is grown the most (in Saskatchewan)?
Wheat, barley, canola, flax,oats
In the united states the biggest crop is corn
4. How much water does it take to make a crop grow?
Irrigation- a way farmers put water on a crop. In Sask. most farmers rely on rain.
5. What is soil?
Mineral parts of soil- sand, silt and clay. To this we add organic material- dead plants.
6. What is a tractor used for?
Seeding and Harvest- bailing, pulling other kinds of equipment- seeders and sprayers, grain carts.
Not built for speed, but pulling power.
Some are comfortable with AC and cushy seats.
7. What do kids do on Farms?
-explore, cutting the grass, run the bobcat- moving bails around, loading and unloading chickens, help fix things, run and get things, drive quad to pull equipment around, make and bring food, help in the house
8. Where does milk come from?
Cows, goat, sheep
Each cow can make 10 gallons of milk a day.
9. Why do farmers harvest trees?
