ertie Prop Soil s of Energy fr om

ertie Prop Soil s of Energy fr om the S un

When we talk about the properties of soil what do we need to name? What word would identify each property? • how it feels • how it looks • its ability to contain water • its ability to support plant life

SOIL IS IMPORTANT! Many products we buy can be traced back to the soil. R AI SPACE NTS IE UTR N W ER AT

How can you test different types of soil to see which best supports plant growth? • Plant 3 bean seeds in the same size cup, with the same amount of soil, but remember to use different types of soil. • Water your plants every 2 days. • Observe and record the growth in height you see for the 3 plants. • After a few weeks make a bar graph to display the results of your experiment.

The process and chart below would help you test what property of soil? Step 1: Take a small sample of soil and moisten it with water. Step 2: Place the soil sample between you thumb and forefinger and gently rub. Step 3: Classify your findings based on the chart below. If the soil feels… The soil would be classified as… Gritty or Grainy Sand Smooth or Slippery Silt Sticky Clay A. Formation B. Texture C. Capacity to retain water D. Ability to support life

I A student is testing the amount Iof water retained by added 200 ml to each soil. Now will read the different water I soil. Equal beaker. of soil my amount oftypes ofsee in each amount Here isand water were How much water did the clay soil retain? observation: added to each container. To determine the amount of water retained by each soil sample, the student would… A Add the amount of each soil topsoil gravel sand clay sample to the amount of water added to each soil sample. B Divide the total amount of water added to each soil sample by the number of samples being tested. A 90 ml C 110 ml C Subtract the amount of water B 120 ml collected below each sample from the water added. D Multiply the amount of water added C each soil sample by the to 105 ml number of soil samples being tested.

Which of the following safety tools would you need if you were investigating the texture of soil? A Fire extinguisher B Gloves C Insect repellent D Goggles You want to protect your eyes from the tiny soil particles. Why can’t you wear gloves? You would not be able to feel the texture of the soil.

Which model demonstrates a way to test properties of three different soils in order to see which type of soil best supports the growth of sunflower plants? A Test A B Test B C Test C D Test D Which variables MUST NOT CHANGE? Only change the type of soil in each container.

When we talk about the properties of soil what do we need to name? What word would identify each property? • how it feels • how it looks • its ability to contain water • its ability to support plant life

Amount of Growth Type of Soil Height after 1 week silt loam clay 2 cm 4 cm 1. 6 cm Height after 2 weeks Height after 3 weeks 3. 3 cm 8. 1 cm 7. 2 cm 10. 5 cm 3 cm 4. 7 cm The chart above was made to show the heights of the three bean seeds after a few weeks. Which soil shows that it would NOT best support plant life? WHY? Clay will not let water pass through. It will hold too much water which is not good for plant growth.

Match the following words to their definition. • • • Sand Gravel Humus Silt Clay A. Soil that is soft and drains quickly. B. Holds water and feels slimy when wet C. Dark and moist; adds nutrients to the soil. D. Looks like fine grains E. Rock particles

What is the main source of energy for Earth?

The sun provides Earth with …

Every living thing needs energy! Where do plants get their energy? A from the moon C from the sun B from people D from the stars Where do some animals get their energy? A from the sun C from rain B from plants D from clouds

What drives the water cycle? Condensation Precipitation Evaporation Transpiration Runoff Water

Which part of the water cycle causes flooding and creeks to rise? A B C D evaporation condensation precipitation transpiration

Another question about the water cycle… What part of this picture caused transpiration in the water cycle? A B C D the lake the house the clouds the plants

Here’s another question… What effect would it have on Earth if the sunlight was blocked from shining on the water and land for months at a time? A B C D precipitation would increase condensation would increase evaporation would slow down everything would stay the same