Cells
Environment
body systems
Evolution
Chemistry
General science
100

The part of a plant that does photosynthesis occurs is

The leaf 

100

An ecosystem is defined as 

Answer will vary 

100

The main organ that move blood through your body is the 

Heart

100

Describe competition in the animal kingdom. 

Answers will vary 

100

Everything that has mass is made of these tiny particles called ____________. 

Atoms

100

The term that means a testable answer to a scientific question. 

Hypothesis

200

Plants take in this gas, which is the same as the gas animals exhale. 

CO2

200

Grasses, shrubs and trees are all classified as ___________ in the food chain. 

producers 

200

The breaking down of food into small particles is called 

digestion 

200

True or false: Evolution occurs because an organism has a need. 

FALSE

200

Complete the sentence "Energy is neither created nor _________" 

destroyed 

200

The independent variable is the variable that is ________ by the scientist. 

Changed/manipulated 

300

True or false: These cells come from an animal. 


True

300

The diagram the shows how energy is transferred between organisms in an ecosystem is called a _____________ or ___________. 

food chain  or food web 

300

Ouch! That hurts! The system that detects pain in the body is the

the nervous system 

300

All living things share a common ___________. 

Ancestor

300

The process for creating usable energy for the cell is called 

Respiration 

300

To make your experimental results more valid (true) scientists can 

repeat the experiment, use a large sample size, have their work peer reviewed. 

400

The name for these tiny machine-like parts inside a cell are called 

organelles

400

One way humans impact the environment is through 

pollution, logging, over consumption, etc. 

400

Testosterone, estrogen, and cortisol are all _______ in the endocrine system. 

Hormones

400

Humans evolved from 

monkeys 

400

The image below shows the _______ and _______ model of an enzyme. 


Lock and Key 

400

Define the term: dependent variable 

the data you collect that is in response to the independent variable. 

500

One difference between plants and animals is 

cell wall, large central vacuole, and chloroplasts

500

How can climate change affect an ecosystem? 

answers will vary 

500

This yellow fluid is produced in the kidneys as your blood is filtered and excreted through the urethra as a waste product. 

Urine

500

evolution occurs over a _________ time. 

Loooooong time 

500

The name of this energy molecule used by the body is abbreviated by the letters ___ ___ ___

ATP

500

State two lab safety protocols. 

answers will vary 

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