Presentation on theme: " What are the goals of science? ◦ To provide natural explanations for events in the natural world ◦ To use those explanations to understand patterns."— Presentation transcript:
What are the goals of science? ◦ To provide natural explanations for events in the natural world ◦ To use those explanations to understand patterns in nature ◦ To make useful predictions about natural events
Problem/Question 1. Problem/Question: Develop a question or problem that can be solved through experimentation.
Observation/Research 2. Observation/Research: Make observations and research your topic of interest.
Formulate a Hypothesis 3. Formulate a Hypothesis: Predict a possible answer to the problem or question. Example: If soil temperatures rise, then plant growth will increase.
Experiment 4. Experiment: Develop and follow a procedure. Include a detailed materials list. The outcome must be measurable (quantifiable).
Collect and Analyze Results 5. Collect and Analyze Results: Modify the procedure if needed. Confirm the results by retesting. Include tables, graphs, and photographs.
Conclusion 6. Conclusion: Include a statement that accepts or rejects the hypothesis. Make recommendations for further study and possible improvements to the procedure.
The variable that is deliberately changed is called the independent variable (manipulated variable). The variable that is observed and that changes in response to the independent variable is called the dependent variable (responding variable).
A control group is exposed to the same conditions as the experimental group except for one independent variable. Scientists set up several sets of control and experimental groups to try to reproduce or replicate their observations.
It is the study of living things. What characteristics do all living things share?
All organisms store the complex information they need to live, grow, and reproduce in a genetic code written in a molecule called DNA.
During development, a single fertilized egg divides again and again. As these cells divide, they differentiate, which means they begin to look different from one another and to perform different functions
A stimulus is a signal to which an organism response.
Sexual reproduction- cells from two parents unite to form the first cell of a new organism. Asexual reproduction- a single organism produces offspring identical to itself.
All living organisms use energy to keep conditions inside their cells within certain limits. This process is called homeostasis.
The combination of chemical reactions through which an organism builds up or breaks down materials is called metabolism.
Cells can grow, respond to their surroundings and reproduce Cells are complex and highly organized.
Evolutionary change links all forms of life to a common origin more than 3.5 billion years ago. Evidence is found in all aspects of living and fossil organisms, from physical features to structures of proteins to sequences of information in DNA.
The study of biology revolves around several interlocking big ideas: ◦ Cellular basis of life ◦ Information and heredity (DNA) ◦ Matter and energy ◦ Growth, development, and reproduction ◦ Homeostasis ◦ Evolution ◦ Structure and function ◦ Unity and diversity of life ◦ Interdependence in nature ◦ Science as a way of knowing