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Science 8th Grade Ages 13–14
8th Grade Science — Engineering and Design — Constraints Are Not Criteria A free 1-page hands-on science activity for 8th Grade (ages 13–14). It practices science, observation, inquiry. Download the PDF with no account and no email.
Free printable constraints are not criteria science worksheet. Criteria are what a design should maximise; constraints are limits it must not cross. A bridge that carries more load is better, but one that is over budget or wider than the gap it must span is simply disqualified, however well it scores elsewhere. Writing the two lists separately before any building starts is what stops a team quietly trading away a constraint to win on a criterion — the commonest route by which a good-looking design becomes an unusable one. Part of the Engineering and Design lesson track. For 8th Grade Science (ages 13–14).
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Lab Report — Constraints Are Not Criteria SCIENCE · 8TH GRADE Name Date Complete this lab report for your investigation. Purpose / Research Question: Does a heavier ball bounce higher? Materials: tennis ball, ping-pong ball, rubber ball, metre ruler, wall, partner Hypothesis (If... then... because...): If the ball is heavier, then the bounce height will... Independent Variable: The ball being dropped Dependent Variable: How high it bounces from a 1 m drop Procedure: 1. Tape the ruler upright against the wall 2. 3. Drop it and have a partner read the bounce 4. 5. Rank the balls by bounce height Data / Results: Ball Drop 1 (cm) Average (cm) Tennis Ping-pong Rubber Conclusion: Whose result was different from yours, and why? www.littleactivity.com 8th Grade · Science
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Lab Report — Constraints Are Not Criteria SCIENCE · 8TH GRADE Name Date Complete this lab report for your investigation. Purpose / Research Question: Does a heavier ball bounce higher? Materials: tennis ball, ping-pong ball, rubber ball, metre ruler, wall, partner Hypothesis (If... then... because...): If the ball is heavier, then the bounce height will... Independent Variable: The ball being dropped Dependent Variable: How high it bounces from a 1 m drop Procedure: 1. Tape the ruler upright against the wall 2. 3. Drop it and have a partner read the bounce 4. 5. Rank the balls by bounce height Data / Results: Ball Drop 1 (cm) Average (cm) Tennis Ping-pong Rubber Conclusion: Whose result was different from yours, and why? www.littleactivity.com 8th Grade · Science
Lab Report — Crystal Growing SCIENCE · KINDERGARTEN Name Date Fill in this page as you do your investigation. What are we finding out? How do crystals form? What we need: salt or sugar, hot water (adult), jar, string, pencil, spoon, magnifier What I think will happen: If the solution cools slowly, then the crystals will be... What I will change: How quickly the solution cools What I will watch: Size and number of crystals What to do: 1. Stir salt into hot water until no more dissolves 2. Hang a string from a pencil into the jar 3. Put one jar somewhere cool and one warm 4. Leave both undisturbed for several days 5. Compare the crystals with a magnifier What we saw: Jar Cooling Crystal size A Slow B Fast What I learned: What would you do differently if you ran it again? www.littleactivity.com Kindergarten · Science
Lab Report — Static Electricity Test SCIENCE · KINDERGARTEN Name Date Fill in this page as you do your investigation. What are we finding out? What causes static electricity? What we need: balloon, wool jumper, small paper pieces, empty can, thin water stream, hair What I think will happen: If I rub the balloon on wool, then it will... What I will change: Whether the balloon has been rubbed What I will watch: Whether it attracts the test object What to do: 1. Hold an unrubbed balloon near paper pieces 2. Rub it on wool for 20 seconds 3. Hold it near the paper again 4. Try it near a thin stream of water 5. Try rolling the empty can What we saw: Test Before rubbing After rubbing Paper pieces Water stream Can Trial 4 What I learned: Rubbing moves electrons, leaving a charge that... www.littleactivity.com Kindergarten · Science
Diagram — Planet Sizes SCIENCE · KINDERGARTEN Name Date Name each planet, then tick the ones with rings. Sun 1 2 3 4 5 6 1. 2. 3. 4. 5. 6. Word bank: Earth · Jupiter · Mars · Mercury · Saturn · Venus www.littleactivity.com Kindergarten · Science
Observation Log — Star Chart SCIENCE · KINDERGARTEN Name Date Record your star chart observations. Star Chart Observation Log What to observe: • moon shape/phase • sky clarity • visible stars/planets • time observed Day Drawing Notes Day 1 sketch Half moon, clear sky, saw 2 bright stars Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com Kindergarten · Science
Observation Log — Night Sky SCIENCE · KINDERGARTEN Name Date Record your night sky observations. Night Sky Observation Log What to observe: • sunrise time • sunset time • sky colors at sunrise/sunset • shadow length & direction Time Sketch What I noticed Day 1 sketch Sunrise 6:45 AM, sky was orange and pink, shadow pointed west Day 2 Day 3 Day 4 Summary: After observing for 4 days, I noticed... www.littleactivity.com Kindergarten · Science
Diagram — Rocket Ship Parts SCIENCE · KINDERGARTEN Name Date Cover the word bank. Label as many parts as you can, then check. Rocket Ship Parts 1. nose cone 2. fuel tank 3. engine 4. fins 5. payload 6. booster Write the parts you remember: Which part matters most, and why? www.littleactivity.com Kindergarten · Science
