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STAAR Review
5th Grade Science
Question | Answer |
---|---|
Scientists use different tools for different jobs. The tools include | thermometers, rulers, stopwatches, graduated cylinders, and balance scales |
Triple-beam balances | Have three numbers that are added together to find the mass of an object. |
During experiments | Be safe, follow lab rules, and talk to the teacher if there is a problem. |
In order for an investigation to have valid results: | You must do at least 3 trials. Scientists repeat their experiments several times until they can verify their results and then draw valid conclusions. |
When you do an experiment: | Everything should be kept the same except what you are testing. |
How many variables in an investigation can be changed? | One variable. Everything else must remain the same. |
Finding out what has changed and what is being measured: | Can help identify the question being tested. |
Priority in any science investigation | Safety first. |
Liquids | Never breathe in any. |
Safety with clothing | Goggles when working with any liquid. Tie back long hair or long sleeves. Apron. |
Know safety symbols | eye protection, apron, toxic chemicals, gloves, recycle, flammable, fire extinguisher, no open flames, electrical hazard |
What should you always do AFTER an experiment? | Wash hands. |
Length can be measured with: | metric ruler or meter stick |
Mass is measured with a: | balance (which can be a simple pan balance or triple beam balance). |
Time is measured with: | stopwatch or timer |
Volume is measured with: | graduated cylinder, beaker or measuring cup. |
Collecting net can be used to: | catch flying or swimming critters. |
Thermometer | Tool used to measure temperature. |
Scientists measure temperature in: | Celsius |
Safety goggles | Used to protect your eyes when ding experiments in lab. |
Scale with spring | Used to measure weight. It is measured in metric units (milligram, gram and kilogram). |
Apron | Used to protect clothing and chest area while working on experiments. |
Triple beam balance | Used to measure MASS in the metric system. Each bar represents a different place value hundreds, tens and ones. |
Double pan balance | Used to compare mass to a known mass (always using metric weights). |
Microscope | Used to observe objects too small for the eye. |
Hand lenses | Use to observe details of materials or to observe objects closely. |
Graduated cylinder | Used to measure liquids in milliliters (mL) and liters (L). |
Meter stick | Used to measure length of items using the metric system. |
Measuring cups | Used to measure larger quantities of water in metric units. |
Stop watch | Used to record beginning and ending times during lab work and experiments. |
Compass | Used to find the direction in relation to the North Pole |
Collecting nets | Used to collect samples of animals, plant life, etc |
Hot plate | Used to heat items, usually liquids - wear gloves |
Magnets | Used to test the magnetism of different metals and metallic mixtures |
In the metric system, length is measured in: | meters |
In the metric system, mass is measured in: | grams |
In the metric system, volume is measured in: | liters |
The metric system is based on: | the number 10 and multiples of 10, such as 100 and 1,000. This makes it easy to change from one unit to another unit. |
The freezing and melting temperature of pure water is always: | 0 degrees Celsius. |
The boiling temperature of pure water is always: | 100 degrees Celsius. |
Living things are called: | Organisms. This includes both plants and animals. |
Plants have 3 main parts: | the roots, the stem, and the leaves. |
Roots | take in water |
The stem | moves the water through the plant |
The leaves | trap sunlight (in the chloroplast in the cells) and take in carbon dioxide. |
Photosynthesis | Process where plants make their own food |
Water, sunlight and carbon dioxide enter the plant during this process: | photosynthesis |
Energy from the sun | turns the water and carbon dioxide into sugar (plant's food) |
What leaves the plant after the process of photosynthesis? | Oxygen |
Why do plants have many adaptations? | To allow them to survive in their environment. |
Example of a plant adaptation? | Cactus: has thorns instead of leaves to avoid excessive evaporation of water. Rose: thorns to prevent them from being eaten. Pine tree leaf: doesn't allow a lot of water to be lost. |