Reactions!
Food Webs
Investigations
Physics
Grab Bag!
100

This is the universal indicator color associated with strong acids and the color associated with strong alkalis.

What are red (acid) and purple (alkali)?

100

These are organisms that cannot make their own food, and therefore rely on food made by plants.

What is a consumer or primary consumer?

100
In an experiment, this is the variable that we measure.

What is the dependent variable?

100

This is the separation of particles in a solid.

What is closely packed?

100

This is the pH of distilled water.

What is 7 (neutral)?

200

This is the method to detect whether oxygen gas has been produced by a reaction.

What is a glowing splint that reignites?

200

These are organisms that decay dead plant and animal matter, including excretion from animals.

What are decomposers?

200

This is the piece of equipment needed to measure temperature.

What is a thermometer?

200

This is the separation of particles in a gas.

What is far apart?

200

This is an animal that catches, kills and eats other animals.

What is a predator?

300

This is the name given to a chemical reaction between an acid and an alkali.

What is a neutralization reaction?

300

This word means branching into two, and we use these keys to help identify organisms.

What is dichotomous or dichotomous keys?

300

In an experiment, these are variables that we try to keep from changing in order to perform a fair investigation.

What are control variables?

300

Being a gas at room temperature is a good indicator that a substance is this.

What is a non-metal?

300

This is a diagram showing many interconnecting food chains.

What is a food web?

400

This is the product of two liquid solutions reacting and forming at least one solid substance.

What is a precipitate?

400

This is what the arrows on a food web indicate.

What is the direction that energy travels or transfers?

400

This warning label depicts a tree with no leaves and a dead fish.

What is hazardous to the environment?

400

These are the two processes that water undergoes when transforming from the ocean into clouds.

What are evaporation and condensation?

400
In an experiment, this is the variable that we change so that we can learn what happens, like the type of a reactant we add to a chemical reaction.

What is an independent variable?

500

These are 4 ways to detect that a chemical reaction has taken place.

What are a gas is produced, the color changes, heat is produced, a change in pH, a precipitate is formed, or a reactant disappears?

500

These are tiny living organisms that compost or decompose organic material, AND four different kinds of these organisms.

What are microorganisms AND bacteria, fungi, protozoa and algae?

500

These are the two pieces of equipment needed to measure the mass of small or powdered substance.

What are a scale and weigh boat?

500

These are 5 common characteristics of metals.

What are shiny when polished, malleable, ductile, sonorous, high melting points, good conductors of heat/electricity, sometimes magnetic?

500

This is the color of a universal indicator that has been dipped into a slightly acidic solution.

What is yellow?

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