1 / 12

Homework

Homework. Will eating chocolate bars cause acne? Make a fair test to answer this question including hypothesis and constant variables Hypothesis: If you eat more chocolate bars then you will get more acne Constants: All other food intake except chocolate bars amount

edythe
Download Presentation

Homework

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Homework • Will eating chocolate bars cause acne? • Make a fair test to answer this question including hypothesis and constant variables • Hypothesis: • If you eat more chocolate bars then you will get more acne • Constants: • All other food intake except chocolate bars amount • Participant - same person so their predisposition to acne is not relevant • Washing your face • Sleep • Stress • Test - have someone eat 5 bars a day for a week then 2 a day then none • Measure oil content on skin and number of pimples

  2. Ecosystems To be or not to be - William Shakespeare Learning Goals: Understand what organisms need to survive Distinguish between and provide examples of abiotic and biotic elements in an ecosystem

  3. What do you do as your daily routine? Mandatory Extra • Eat breakfast (energy) • Drink • Open your blinds (for sunlight) • Get dressed (regulate temperature) • Breathe • Go to the bathroom Shower Brush your teeth Watch TV Socialize

  4. The five basic needs for living things • Food - provides nutrients that allows the body growth and maintain itself • Bodies break down food into usable energy • Without food we would be too weak to function • Drink - our bodies are about 60% water and we need to maintain that level by hydrating daily • We lose water when we sweat, bleed, dispose of waste (go to the bathroom or vomit), etc. • Sunlight - all organisms (living things) obtain energy from the sun • Either directly or indirectly - the sun also provides warmth which organisms use to maintain their ideal body temperature • Air - diverse organisms breathe different gases that the air provides • What gases make up our air? • Nitrogen = 78% Oxygen = 20% Carbon Dioxide = 0.03% Other = 1.97% • Temperature = most organisms have an ideal temperature range that must be met to ensure survival • Humans ideal temperature is 97  °F/37 °C

  5. Canadian Winter for a Jamaican

  6. Which of these require the 5 basic needs to survive?

  7. Biotic Living Non-living Abiotic

  8. Proper Science Terms • Biotic = living parts of an environment/habitat/ecosystem • Also called organisms • Ex., plants and animals • Abiotic = a physical but non-living feature of an environment/habitat/ecosystem • Ex., climate, rocks, soil, water, etc. • There is a grey area that is up for debate • Are dead biotic organisms now abiotic or are they still considered biotic?

  9. Definitions One type of species living in the same habitat A herd of deer Population Deer, trees, insects, bacteria, mushrooms, wolves, flowers More then one type of species living in the same habitat Community Deer, trees, insects, bacteria, mushrooms, wolves, flowers,  sun, lake, soil, rocks, rain, snow, heat The living and nonliving things in a habitat Ecosystem

  10. Abiotic: Non -loving Things Biotic: Loving Things

More Related