Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
7th Grade Science
1st Semester questions in 7th grade science to study for MId-terms
| Question | Answer |
|---|---|
| Name 2 methods scientist use to obtain empirical evidence | In the field and in the lab |
| What basic requirements must a hypothesis have? | -Testable by experiment or observations -Independant and Dependant Varibles |
| List the steps to the scientific method | -Defining a problem -Research -Hypothesis and Prediction -Planning investigation -Identifying Variables -Collecting/Organizing Data -Interpreting Data/Analyzing Information -Drawing/Defending Conclusions |
| How many steps are in the scientific method? | 6 Basic Steps |
| What is the Independent variable? | What the scientist changes in the experiment |
| What is the dependant variable? | The reactions to the scientist change in a experiment |
| What is a wave? | A disturbance that transfers energy from one place to another |
| What is a longitudinal wave? | A wave when particles move back and forth in the same direction as the wave or parallel to the wave |
| What is a transverse wave? | a wave where particles move perpendicularly to the direction the wave travels |
| What wave requires a medium in which to travel? | A mechanical wave |
| What are the different forms of energy?(MRS.CHEN) | Mechanical, Radiant, Sound, Chemical, Heat, Electric, Nuclear |
| What does the law of conservation of energy state? | Energy cannot be created or destroyed |
| What is conduction? | Transfer of energy from one substance to another through direct contact |
| What is convection? | Transfer of energy through a liquid or gas |
| What is radiation? | Transfer of energy through electromagnetic waves? |
| List the levels of organization from largest to smallest | Ecosystem, Community, Population, Individual |
| What is a community? | A group of many species |
| What is a population? | A group of one species |
| What is an organism's habitat? | Its shelter or where it lives |
| What is an organism's niche? | Its role in a ecosystem |
| How are organisms connected to their nonliving environment? | Organisms use abiotic elements in their ecosystem for water, habitat, and nutrients |
| What do all food chains start with? | Producers |
| Herbivores, carnivores, and omnivores are all types of what? | Consumers |
| What is the decomposers role in a environment? | The breaking down of dead organisms |
Created by:
#Stitch626
Popular Science sets