What does an atom look like A microscopic

What does an atom look like? ¡ A microscopic photo of a sheet of glass only two atoms thick blends with an artist's conception to show the structural rendering. Credit: Kavli Institute at Cornell for Nanoscale Science. ¡ A single Hydrogen atom: Electron Density Model http: //www. pbs. org/wgbh/nova/physics/hunting-elements. html Or Netflix: PBS Nova: Hunting the Elements

Tomatosphere Conclusion Final Data ¡ Fill in Chart ¡ Review initial predictions and do “After” observations ¡ Take home seeds ¡ Instructions for home growth: http: //tomatosphere. letstalkscience. ca/Resources/library/Arti cle. Id/4775/growing-tomato-plants. aspx

Growing Tomatoes ¡ ¡ ¡ After several weeks of growth, plan to transfer the plants, including the peat pellets, to the final indoor containers. Ideally these should be 10 to 20 litre pots with good drainage. For soil, it is best to use a good quality potting soil; look for brand that contains peat moss and perlite. Leave the plants in the pellets to avoid disturbing the roots and soak the pellets before transplanting. Bury the plant halfway up the stem and do not be concerned if bottom leaves become covered with soil. When transplanting always handle the delicate seedlings with care.

Growing Plants Outside ¡ ¡ The plants may be transplanted into soil outdoors as long as the daytime temperature generally exceeds 15°C and there is no danger of minimum temperatures below 5°C at night. Always wait until there is no chance of frost to plant outdoors. Tomato flowers will begin to appear about 30 days after transplanting and will be ready for self-pollination. Indoors or outdoors, it is beneficial to assist this selfpollination process by lightly shaking the plants several times per week while the flowers are open, holding the plant in the middle of the main stem with the thumb and forefinger. Tomato plants grown outdoors will also get help with pollination from wind and the activity of pollinating insects such as bumble bees.

Growing Tomato Plant ¡ ¡ ¡ After the plants have achieved a height of 35 cm, they will need extra support. Staking up developing tomatoes also keeps them away from slugs on the ground. Using strips of soft cloth (about 2 cm by 25 cm), tie the plant stem in 2 -3 places to a support stake that extends at least 1 metre above the ground. Wire tomato cages or other commercial support devices (poles, sticks, posts, garden clips, string, plastic cable ties, stretch ties, flagging tape, etc. ) may also be used. To avoid damaging the plant, it is best to place the cage or other support devices around the plant while it is still relatively small and allow the plant to grow into the support.

Lighting for Tomato Growth ¡ ¡ Tomatoes needs at least 8 hours a day of sunlight to produce fruit, but aim to provide 12 -16 hours of light for the best growing results. Plants grown indoors should be placed near a south-facing window in a location that is free of drafts. If your room lacks good windows and sun exposure or the winter daylight hours in your location are very short, you can provide additional lighting. There a wide variety of affordable commercial grow lights available that will support tomato plant light requirements.

Matter

What you “Know” ¡ Solid, Liquid, Gas, Freezing, Evaporating, Boiling, Condensation, Dissolving, Mixture, Elements, Solution What you don’t “Know” ¡ Particle Theory, Tyndall Effect, Homogeneous, Heterogeneous, Mechanical Mixture, Solute, Solvent, Sublimation, Dilution, Pure Substance, Physical Transformations, Compounds, Saturated

Review from Last Class ¡ ¡ ¡ What 2 characteristics do all matter share? What are the 3 Main States of Matter? What are some properties of solids? What are some properties of liquids? What are some properties of gases? What are the 3 other states of matter?

Review from Last Class ¡ Which state of matter?

Homework Sheet Solids, Liquids and Gases Fill in the table below by identifying each material as a solid liquid or gas. Include an explanation for each. Material Margarine in a fridge Margarine in a hot frying pan Smoke Dish Washing Soap Lemonade Popsicle Steam from a Kettle A Shoe Jello State (S, L G) Explanation

Bill Nye- Phases of Matter ¡ https: //www. youtube. com/watch? v =45 YNZj. Yf. Hb 4